/*
 * 86Box	A hypervisor and IBM PC system emulator that specializes in
 *		running old operating systems and software designed for IBM
 *		PC systems and compatibles from 1981 through fairly recent
 *		system designs based on the PCI bus.
 *
 *		This file is part of the 86Box distribution.
 *
 *		Voodoo Graphics and 2 specific emulation.
 *
 *
 *
 * Authors:	Sarah Walker, <http://pcem-emulator.co.uk/>
 *		leilei
 *
 *		Copyright 2008-2020 Sarah Walker.
 */

static const uint8_t dither_rb[256][4][4] =
{
	{
		{0, 0, 0, 0},
		{0, 0, 0, 0},
		{0, 0, 0, 0},
		{0, 0, 0, 0},
	},
	{
		{0, 0, 0, 0},
		{0, 0, 1, 0},
		{0, 0, 0, 0},
		{1, 0, 0, 0},
	},
	{
		{0, 0, 0, 0},
		{1, 0, 1, 0},
		{0, 0, 0, 0},
		{1, 0, 1, 0},
	},
	{
		{0, 0, 0, 1},
		{1, 0, 1, 0},
		{0, 1, 0, 0},
		{1, 0, 1, 0},
	},
	{
		{0, 1, 0, 1},
		{1, 0, 1, 0},
		{0, 1, 0, 1},
		{1, 0, 1, 0},
	},
	{
		{0, 1, 0, 1},
		{1, 0, 1, 1},
		{0, 1, 0, 1},
		{1, 1, 1, 0},
	},
	{
		{0, 1, 0, 1},
		{1, 1, 1, 1},
		{0, 1, 0, 1},
		{1, 1, 1, 1},
	},
	{
		{0, 1, 1, 1},
		{1, 1, 1, 1},
		{1, 1, 0, 1},
		{1, 1, 1, 1},
	},
	{
		{1, 1, 1, 1},
		{1, 1, 1, 1},
		{1, 1, 1, 1},
		{1, 1, 1, 1},
	},
	{
		{1, 1, 1, 1},
		{1, 1, 2, 1},
		{1, 1, 1, 1},
		{2, 1, 1, 1},
	},
	{
		{1, 1, 1, 1},
		{2, 1, 2, 1},
		{1, 1, 1, 1},
		{2, 1, 2, 1},
	},
	{
		{1, 1, 1, 2},
		{2, 1, 2, 1},
		{1, 2, 1, 1},
		{2, 1, 2, 1},
	},
	{
		{1, 2, 1, 2},
		{2, 1, 2, 1},
		{1, 2, 1, 2},
		{2, 1, 2, 1},
	},
	{
		{1, 2, 1, 2},
		{2, 1, 2, 2},
		{1, 2, 1, 2},
		{2, 2, 2, 1},
	},
	{
		{1, 2, 1, 2},
		{2, 2, 2, 2},
		{1, 2, 1, 2},
		{2, 2, 2, 2},
	},
	{
		{1, 2, 2, 2},
		{2, 2, 2, 2},
		{2, 2, 1, 2},
		{2, 2, 2, 2},
	},
	{
		{1, 2, 2, 2},
		{2, 2, 2, 2},
		{2, 2, 2, 2},
		{2, 2, 2, 2},
	},
	{
		{2, 2, 2, 2},
		{2, 2, 2, 2},
		{2, 2, 2, 2},
		{3, 2, 2, 2},
	},
	{
		{2, 2, 2, 2},
		{2, 2, 3, 2},
		{2, 2, 2, 2},
		{3, 2, 3, 2},
	},
	{
		{2, 2, 2, 2},
		{3, 2, 3, 2},
		{2, 3, 2, 2},
		{3, 2, 3, 2},
	},
	{
		{2, 2, 2, 3},
		{3, 2, 3, 2},
		{2, 3, 2, 3},
		{3, 2, 3, 2},
	},
	{
		{2, 3, 2, 3},
		{3, 2, 3, 2},
		{2, 3, 2, 3},
		{3, 3, 3, 2},
	},
	{
		{2, 3, 2, 3},
		{3, 2, 3, 3},
		{2, 3, 2, 3},
		{3, 3, 3, 3},
	},
	{
		{2, 3, 2, 3},
		{3, 3, 3, 3},
		{3, 3, 2, 3},
		{3, 3, 3, 3},
	},
	{
		{2, 3, 3, 3},
		{3, 3, 3, 3},
		{3, 3, 3, 3},
		{3, 3, 3, 3},
	},
	{
		{3, 3, 3, 3},
		{3, 3, 3, 3},
		{3, 3, 3, 3},
		{4, 3, 3, 3},
	},
	{
		{3, 3, 3, 3},
		{3, 3, 4, 3},
		{3, 3, 3, 3},
		{4, 3, 4, 3},
	},
	{
		{3, 3, 3, 3},
		{4, 3, 4, 3},
		{3, 4, 3, 3},
		{4, 3, 4, 3},
	},
	{
		{3, 3, 3, 4},
		{4, 3, 4, 3},
		{3, 4, 3, 4},
		{4, 3, 4, 3},
	},
	{
		{3, 4, 3, 4},
		{4, 3, 4, 3},
		{3, 4, 3, 4},
		{4, 4, 4, 3},
	},
	{
		{3, 4, 3, 4},
		{4, 3, 4, 4},
		{3, 4, 3, 4},
		{4, 4, 4, 4},
	},
	{
		{3, 4, 3, 4},
		{4, 4, 4, 4},
		{4, 4, 3, 4},
		{4, 4, 4, 4},
	},
	{
		{3, 4, 4, 4},
		{4, 4, 4, 4},
		{4, 4, 3, 4},
		{4, 4, 4, 4},
	},
	{
		{4, 4, 4, 4},
		{4, 4, 4, 4},
		{4, 4, 4, 4},
		{4, 4, 4, 4},
	},
	{
		{4, 4, 4, 4},
		{4, 4, 5, 4},
		{4, 4, 4, 4},
		{5, 4, 4, 4},
	},
	{
		{4, 4, 4, 4},
		{5, 4, 5, 4},
		{4, 4, 4, 4},
		{5, 4, 5, 4},
	},
	{
		{4, 4, 4, 5},
		{5, 4, 5, 4},
		{4, 5, 4, 4},
		{5, 4, 5, 4},
	},
	{
		{4, 5, 4, 5},
		{5, 4, 5, 4},
		{4, 5, 4, 5},
		{5, 4, 5, 4},
	},
	{
		{4, 5, 4, 5},
		{5, 4, 5, 5},
		{4, 5, 4, 5},
		{5, 5, 5, 4},
	},
	{
		{4, 5, 4, 5},
		{5, 5, 5, 5},
		{4, 5, 4, 5},
		{5, 5, 5, 5},
	},
	{
		{4, 5, 5, 5},
		{5, 5, 5, 5},
		{5, 5, 4, 5},
		{5, 5, 5, 5},
	},
	{
		{5, 5, 5, 5},
		{5, 5, 5, 5},
		{5, 5, 5, 5},
		{5, 5, 5, 5},
	},
	{
		{5, 5, 5, 5},
		{5, 5, 6, 5},
		{5, 5, 5, 5},
		{6, 5, 5, 5},
	},
	{
		{5, 5, 5, 5},
		{6, 5, 6, 5},
		{5, 5, 5, 5},
		{6, 5, 6, 5},
	},
	{
		{5, 5, 5, 6},
		{6, 5, 6, 5},
		{5, 6, 5, 5},
		{6, 5, 6, 5},
	},
	{
		{5, 6, 5, 6},
		{6, 5, 6, 5},
		{5, 6, 5, 6},
		{6, 5, 6, 5},
	},
	{
		{5, 6, 5, 6},
		{6, 5, 6, 6},
		{5, 6, 5, 6},
		{6, 6, 6, 5},
	},
	{
		{5, 6, 5, 6},
		{6, 6, 6, 6},
		{5, 6, 5, 6},
		{6, 6, 6, 6},
	},
	{
		{5, 6, 5, 6},
		{6, 6, 6, 6},
		{6, 6, 5, 6},
		{6, 6, 6, 6},
	},
	{
		{5, 6, 6, 6},
		{6, 6, 6, 6},
		{6, 6, 6, 6},
		{6, 6, 6, 6},
	},
	{
		{6, 6, 6, 6},
		{6, 6, 6, 6},
		{6, 6, 6, 6},
		{7, 6, 6, 6},
	},
	{
		{6, 6, 6, 6},
		{6, 6, 7, 6},
		{6, 6, 6, 6},
		{7, 6, 7, 6},
	},
	{
		{6, 6, 6, 6},
		{7, 6, 7, 6},
		{6, 7, 6, 6},
		{7, 6, 7, 6},
	},
	{
		{6, 6, 6, 7},
		{7, 6, 7, 6},
		{6, 7, 6, 7},
		{7, 6, 7, 6},
	},
	{
		{6, 7, 6, 7},
		{7, 6, 7, 6},
		{6, 7, 6, 7},
		{7, 7, 7, 6},
	},
	{
		{6, 7, 6, 7},
		{7, 6, 7, 7},
		{6, 7, 6, 7},
		{7, 7, 7, 7},
	},
	{
		{6, 7, 6, 7},
		{7, 7, 7, 7},
		{7, 7, 6, 7},
		{7, 7, 7, 7},
	},
	{
		{6, 7, 7, 7},
		{7, 7, 7, 7},
		{7, 7, 7, 7},
		{7, 7, 7, 7},
	},
	{
		{7, 7, 7, 7},
		{7, 7, 7, 7},
		{7, 7, 7, 7},
		{8, 7, 7, 7},
	},
	{
		{7, 7, 7, 7},
		{7, 7, 8, 7},
		{7, 7, 7, 7},
		{8, 7, 8, 7},
	},
	{
		{7, 7, 7, 7},
		{8, 7, 8, 7},
		{7, 8, 7, 7},
		{8, 7, 8, 7},
	},
	{
		{7, 7, 7, 8},
		{8, 7, 8, 7},
		{7, 8, 7, 8},
		{8, 7, 8, 7},
	},
	{
		{7, 8, 7, 8},
		{8, 7, 8, 7},
		{7, 8, 7, 8},
		{8, 8, 8, 7},
	},
	{
		{7, 8, 7, 8},
		{8, 7, 8, 8},
		{7, 8, 7, 8},
		{8, 8, 8, 8},
	},
	{
		{7, 8, 7, 8},
		{8, 8, 8, 8},
		{7, 8, 7, 8},
		{8, 8, 8, 8},
	},
	{
		{7, 8, 8, 8},
		{8, 8, 8, 8},
		{8, 8, 7, 8},
		{8, 8, 8, 8},
	},
	{
		{8, 8, 8, 8},
		{8, 8, 8, 8},
		{8, 8, 8, 8},
		{8, 8, 8, 8},
	},
	{
		{8, 8, 8, 8},
		{8, 8, 9, 8},
		{8, 8, 8, 8},
		{9, 8, 8, 8},
	},
	{
		{8, 8, 8, 8},
		{9, 8, 9, 8},
		{8, 8, 8, 8},
		{9, 8, 9, 8},
	},
	{
		{8, 8, 8, 9},
		{9, 8, 9, 8},
		{8, 9, 8, 8},
		{9, 8, 9, 8},
	},
	{
		{8, 9, 8, 9},
		{9, 8, 9, 8},
		{8, 9, 8, 9},
		{9, 8, 9, 8},
	},
	{
		{8, 9, 8, 9},
		{9, 8, 9, 9},
		{8, 9, 8, 9},
		{9, 9, 9, 8},
	},
	{
		{8, 9, 8, 9},
		{9, 9, 9, 9},
		{8, 9, 8, 9},
		{9, 9, 9, 9},
	},
	{
		{8, 9, 9, 9},
		{9, 9, 9, 9},
		{9, 9, 8, 9},
		{9, 9, 9, 9},
	},
	{
		{9, 9, 9, 9},
		{9, 9, 9, 9},
		{9, 9, 9, 9},
		{9, 9, 9, 9},
	},
	{
		{9, 9, 9, 9},
		{9, 9, 10, 9},
		{9, 9, 9, 9},
		{10, 9, 9, 9},
	},
	{
		{9, 9, 9, 9},
		{10, 9, 10, 9},
		{9, 9, 9, 9},
		{10, 9, 10, 9},
	},
	{
		{9, 9, 9, 10},
		{10, 9, 10, 9},
		{9, 10, 9, 9},
		{10, 9, 10, 9},
	},
	{
		{9, 10, 9, 10},
		{10, 9, 10, 9},
		{9, 10, 9, 10},
		{10, 9, 10, 9},
	},
	{
		{9, 10, 9, 10},
		{10, 9, 10, 10},
		{9, 10, 9, 10},
		{10, 10, 10, 9},
	},
	{
		{9, 10, 9, 10},
		{10, 9, 10, 10},
		{9, 10, 9, 10},
		{10, 10, 10, 10},
	},
	{
		{9, 10, 9, 10},
		{10, 10, 10, 10},
		{10, 10, 9, 10},
		{10, 10, 10, 10},
	},
	{
		{9, 10, 10, 10},
		{10, 10, 10, 10},
		{10, 10, 10, 10},
		{10, 10, 10, 10},
	},
	{
		{10, 10, 10, 10},
		{10, 10, 10, 10},
		{10, 10, 10, 10},
		{11, 10, 10, 10},
	},
	{
		{10, 10, 10, 10},
		{10, 10, 11, 10},
		{10, 10, 10, 10},
		{11, 10, 11, 10},
	},
	{
		{10, 10, 10, 10},
		{11, 10, 11, 10},
		{10, 11, 10, 10},
		{11, 10, 11, 10},
	},
	{
		{10, 10, 10, 11},
		{11, 10, 11, 10},
		{10, 11, 10, 11},
		{11, 10, 11, 10},
	},
	{
		{10, 11, 10, 11},
		{11, 10, 11, 10},
		{10, 11, 10, 11},
		{11, 11, 11, 10},
	},
	{
		{10, 11, 10, 11},
		{11, 10, 11, 11},
		{10, 11, 10, 11},
		{11, 11, 11, 11},
	},
	{
		{10, 11, 10, 11},
		{11, 11, 11, 11},
		{11, 11, 10, 11},
		{11, 11, 11, 11},
	},
	{
		{10, 11, 11, 11},
		{11, 11, 11, 11},
		{11, 11, 11, 11},
		{11, 11, 11, 11},
	},
	{
		{11, 11, 11, 11},
		{11, 11, 11, 11},
		{11, 11, 11, 11},
		{12, 11, 11, 11},
	},
	{
		{11, 11, 11, 11},
		{11, 11, 12, 11},
		{11, 11, 11, 11},
		{12, 11, 12, 11},
	},
	{
		{11, 11, 11, 11},
		{12, 11, 12, 11},
		{11, 12, 11, 11},
		{12, 11, 12, 11},
	},
	{
		{11, 11, 11, 12},
		{12, 11, 12, 11},
		{11, 12, 11, 12},
		{12, 11, 12, 11},
	},
	{
		{11, 12, 11, 12},
		{12, 11, 12, 11},
		{11, 12, 11, 12},
		{12, 12, 12, 11},
	},
	{
		{11, 12, 11, 12},
		{12, 11, 12, 12},
		{11, 12, 11, 12},
		{12, 12, 12, 11},
	},
	{
		{11, 12, 11, 12},
		{12, 12, 12, 12},
		{11, 12, 11, 12},
		{12, 12, 12, 12},
	},
	{
		{11, 12, 12, 12},
		{12, 12, 12, 12},
		{12, 12, 11, 12},
		{12, 12, 12, 12},
	},
	{
		{12, 12, 12, 12},
		{12, 12, 12, 12},
		{12, 12, 12, 12},
		{12, 12, 12, 12},
	},
	{
		{12, 12, 12, 12},
		{12, 12, 13, 12},
		{12, 12, 12, 12},
		{13, 12, 12, 12},
	},
	{
		{12, 12, 12, 12},
		{13, 12, 13, 12},
		{12, 12, 12, 12},
		{13, 12, 13, 12},
	},
	{
		{12, 12, 12, 13},
		{13, 12, 13, 12},
		{12, 13, 12, 12},
		{13, 12, 13, 12},
	},
	{
		{12, 13, 12, 13},
		{13, 12, 13, 12},
		{12, 13, 12, 13},
		{13, 12, 13, 12},
	},
	{
		{12, 13, 12, 13},
		{13, 12, 13, 13},
		{12, 13, 12, 13},
		{13, 13, 13, 12},
	},
	{
		{12, 13, 12, 13},
		{13, 13, 13, 13},
		{12, 13, 12, 13},
		{13, 13, 13, 13},
	},
	{
		{12, 13, 13, 13},
		{13, 13, 13, 13},
		{13, 13, 12, 13},
		{13, 13, 13, 13},
	},
	{
		{13, 13, 13, 13},
		{13, 13, 13, 13},
		{13, 13, 13, 13},
		{13, 13, 13, 13},
	},
	{
		{13, 13, 13, 13},
		{13, 13, 14, 13},
		{13, 13, 13, 13},
		{14, 13, 13, 13},
	},
	{
		{13, 13, 13, 13},
		{14, 13, 14, 13},
		{13, 13, 13, 13},
		{14, 13, 14, 13},
	},
	{
		{13, 13, 13, 14},
		{14, 13, 14, 13},
		{13, 14, 13, 13},
		{14, 13, 14, 13},
	},
	{
		{13, 14, 13, 14},
		{14, 13, 14, 13},
		{13, 14, 13, 14},
		{14, 13, 14, 13},
	},
	{
		{13, 14, 13, 14},
		{14, 13, 14, 13},
		{13, 14, 13, 14},
		{14, 14, 14, 13},
	},
	{
		{13, 14, 13, 14},
		{14, 13, 14, 14},
		{13, 14, 13, 14},
		{14, 14, 14, 14},
	},
	{
		{13, 14, 13, 14},
		{14, 14, 14, 14},
		{14, 14, 13, 14},
		{14, 14, 14, 14},
	},
	{
		{13, 14, 14, 14},
		{14, 14, 14, 14},
		{14, 14, 14, 14},
		{14, 14, 14, 14},
	},
	{
		{14, 14, 14, 14},
		{14, 14, 14, 14},
		{14, 14, 14, 14},
		{15, 14, 14, 14},
	},
	{
		{14, 14, 14, 14},
		{14, 14, 15, 14},
		{14, 14, 14, 14},
		{15, 14, 15, 14},
	},
	{
		{14, 14, 14, 14},
		{15, 14, 15, 14},
		{14, 15, 14, 14},
		{15, 14, 15, 14},
	},
	{
		{14, 14, 14, 15},
		{15, 14, 15, 14},
		{14, 15, 14, 15},
		{15, 14, 15, 14},
	},
	{
		{14, 15, 14, 15},
		{15, 14, 15, 14},
		{14, 15, 14, 15},
		{15, 15, 15, 14},
	},
	{
		{14, 15, 14, 15},
		{15, 14, 15, 15},
		{14, 15, 14, 15},
		{15, 15, 15, 15},
	},
	{
		{14, 15, 14, 15},
		{15, 15, 15, 15},
		{15, 15, 14, 15},
		{15, 15, 15, 15},
	},
	{
		{14, 15, 15, 15},
		{15, 15, 15, 15},
		{15, 15, 15, 15},
		{15, 15, 15, 15},
	},
	{
		{15, 15, 15, 15},
		{15, 15, 15, 15},
		{15, 15, 15, 15},
		{16, 15, 15, 15},
	},
	{
		{15, 15, 15, 15},
		{15, 15, 16, 15},
		{15, 15, 15, 15},
		{16, 15, 16, 15},
	},
	{
		{15, 15, 15, 15},
		{16, 15, 16, 15},
		{15, 16, 15, 15},
		{16, 15, 16, 15},
	},
	{
		{15, 15, 15, 16},
		{16, 15, 16, 15},
		{15, 16, 15, 16},
		{16, 15, 16, 15},
	},
	{
		{15, 16, 15, 16},
		{16, 15, 16, 15},
		{15, 16, 15, 16},
		{16, 16, 16, 15},
	},
	{
		{15, 16, 15, 16},
		{16, 15, 16, 16},
		{15, 16, 15, 16},
		{16, 16, 16, 16},
	},
	{
		{15, 16, 15, 16},
		{16, 16, 16, 16},
		{16, 16, 15, 16},
		{16, 16, 16, 16},
	},
	{
		{15, 16, 16, 16},
		{16, 16, 16, 16},
		{16, 16, 16, 16},
		{16, 16, 16, 16},
	},
	{
		{16, 16, 16, 16},
		{16, 16, 16, 16},
		{16, 16, 16, 16},
		{17, 16, 16, 16},
	},
	{
		{16, 16, 16, 16},
		{16, 16, 17, 16},
		{16, 16, 16, 16},
		{17, 16, 17, 16},
	},
	{
		{16, 16, 16, 16},
		{17, 16, 17, 16},
		{16, 17, 16, 16},
		{17, 16, 17, 16},
	},
	{
		{16, 16, 16, 17},
		{17, 16, 17, 16},
		{16, 17, 16, 17},
		{17, 16, 17, 16},
	},
	{
		{16, 17, 16, 17},
		{17, 16, 17, 16},
		{16, 17, 16, 17},
		{17, 17, 17, 16},
	},
	{
		{16, 17, 16, 17},
		{17, 16, 17, 17},
		{16, 17, 16, 17},
		{17, 17, 17, 17},
	},
	{
		{16, 17, 16, 17},
		{17, 17, 17, 17},
		{17, 17, 16, 17},
		{17, 17, 17, 17},
	},
	{
		{16, 17, 17, 17},
		{17, 17, 17, 17},
		{17, 17, 17, 17},
		{17, 17, 17, 17},
	},
	{
		{17, 17, 17, 17},
		{17, 17, 17, 17},
		{17, 17, 17, 17},
		{18, 17, 17, 17},
	},
	{
		{17, 17, 17, 17},
		{17, 17, 18, 17},
		{17, 17, 17, 17},
		{18, 17, 18, 17},
	},
	{
		{17, 17, 17, 17},
		{18, 17, 18, 17},
		{17, 18, 17, 17},
		{18, 17, 18, 17},
	},
	{
		{17, 17, 17, 18},
		{18, 17, 18, 17},
		{17, 18, 17, 18},
		{18, 17, 18, 17},
	},
	{
		{17, 18, 17, 18},
		{18, 17, 18, 17},
		{17, 18, 17, 18},
		{18, 17, 18, 17},
	},
	{
		{17, 18, 17, 18},
		{18, 17, 18, 18},
		{17, 18, 17, 18},
		{18, 18, 18, 17},
	},
	{
		{17, 18, 17, 18},
		{18, 18, 18, 18},
		{17, 18, 17, 18},
		{18, 18, 18, 18},
	},
	{
		{17, 18, 18, 18},
		{18, 18, 18, 18},
		{18, 18, 17, 18},
		{18, 18, 18, 18},
	},
	{
		{18, 18, 18, 18},
		{18, 18, 18, 18},
		{18, 18, 18, 18},
		{18, 18, 18, 18},
	},
	{
		{18, 18, 18, 18},
		{18, 18, 19, 18},
		{18, 18, 18, 18},
		{19, 18, 18, 18},
	},
	{
		{18, 18, 18, 18},
		{19, 18, 19, 18},
		{18, 18, 18, 18},
		{19, 18, 19, 18},
	},
	{
		{18, 18, 18, 19},
		{19, 18, 19, 18},
		{18, 19, 18, 18},
		{19, 18, 19, 18},
	},
	{
		{18, 19, 18, 19},
		{19, 18, 19, 18},
		{18, 19, 18, 19},
		{19, 18, 19, 18},
	},
	{
		{18, 19, 18, 19},
		{19, 18, 19, 19},
		{18, 19, 18, 19},
		{19, 19, 19, 18},
	},
	{
		{18, 19, 18, 19},
		{19, 19, 19, 19},
		{18, 19, 18, 19},
		{19, 19, 19, 19},
	},
	{
		{18, 19, 19, 19},
		{19, 19, 19, 19},
		{19, 19, 18, 19},
		{19, 19, 19, 19},
	},
	{
		{19, 19, 19, 19},
		{19, 19, 19, 19},
		{19, 19, 19, 19},
		{19, 19, 19, 19},
	},
	{
		{19, 19, 19, 19},
		{19, 19, 20, 19},
		{19, 19, 19, 19},
		{20, 19, 19, 19},
	},
	{
		{19, 19, 19, 19},
		{20, 19, 20, 19},
		{19, 19, 19, 19},
		{20, 19, 20, 19},
	},
	{
		{19, 19, 19, 20},
		{20, 19, 20, 19},
		{19, 20, 19, 19},
		{20, 19, 20, 19},
	},
	{
		{19, 19, 19, 20},
		{20, 19, 20, 19},
		{19, 20, 19, 20},
		{20, 19, 20, 19},
	},
	{
		{19, 20, 19, 20},
		{20, 19, 20, 19},
		{19, 20, 19, 20},
		{20, 20, 20, 19},
	},
	{
		{19, 20, 19, 20},
		{20, 19, 20, 20},
		{19, 20, 19, 20},
		{20, 20, 20, 20},
	},
	{
		{19, 20, 19, 20},
		{20, 20, 20, 20},
		{20, 20, 19, 20},
		{20, 20, 20, 20},
	},
	{
		{19, 20, 20, 20},
		{20, 20, 20, 20},
		{20, 20, 20, 20},
		{20, 20, 20, 20},
	},
	{
		{20, 20, 20, 20},
		{20, 20, 20, 20},
		{20, 20, 20, 20},
		{21, 20, 20, 20},
	},
	{
		{20, 20, 20, 20},
		{20, 20, 21, 20},
		{20, 20, 20, 20},
		{21, 20, 21, 20},
	},
	{
		{20, 20, 20, 20},
		{21, 20, 21, 20},
		{20, 21, 20, 20},
		{21, 20, 21, 20},
	},
	{
		{20, 20, 20, 21},
		{21, 20, 21, 20},
		{20, 21, 20, 21},
		{21, 20, 21, 20},
	},
	{
		{20, 21, 20, 21},
		{21, 20, 21, 20},
		{20, 21, 20, 21},
		{21, 21, 21, 20},
	},
	{
		{20, 21, 20, 21},
		{21, 20, 21, 21},
		{20, 21, 20, 21},
		{21, 21, 21, 21},
	},
	{
		{20, 21, 20, 21},
		{21, 21, 21, 21},
		{21, 21, 20, 21},
		{21, 21, 21, 21},
	},
	{
		{20, 21, 21, 21},
		{21, 21, 21, 21},
		{21, 21, 21, 21},
		{21, 21, 21, 21},
	},
	{
		{21, 21, 21, 21},
		{21, 21, 21, 21},
		{21, 21, 21, 21},
		{22, 21, 21, 21},
	},
	{
		{21, 21, 21, 21},
		{21, 21, 22, 21},
		{21, 21, 21, 21},
		{22, 21, 22, 21},
	},
	{
		{21, 21, 21, 21},
		{22, 21, 22, 21},
		{21, 22, 21, 21},
		{22, 21, 22, 21},
	},
	{
		{21, 21, 21, 22},
		{22, 21, 22, 21},
		{21, 22, 21, 21},
		{22, 21, 22, 21},
	},
	{
		{21, 22, 21, 22},
		{22, 21, 22, 21},
		{21, 22, 21, 22},
		{22, 21, 22, 21},
	},
	{
		{21, 22, 21, 22},
		{22, 21, 22, 22},
		{21, 22, 21, 22},
		{22, 22, 22, 21},
	},
	{
		{21, 22, 21, 22},
		{22, 22, 22, 22},
		{21, 22, 21, 22},
		{22, 22, 22, 22},
	},
	{
		{21, 22, 22, 22},
		{22, 22, 22, 22},
		{22, 22, 21, 22},
		{22, 22, 22, 22},
	},
	{
		{22, 22, 22, 22},
		{22, 22, 22, 22},
		{22, 22, 22, 22},
		{22, 22, 22, 22},
	},
	{
		{22, 22, 22, 22},
		{22, 22, 23, 22},
		{22, 22, 22, 22},
		{23, 22, 22, 22},
	},
	{
		{22, 22, 22, 22},
		{23, 22, 23, 22},
		{22, 22, 22, 22},
		{23, 22, 23, 22},
	},
	{
		{22, 22, 22, 23},
		{23, 22, 23, 22},
		{22, 23, 22, 22},
		{23, 22, 23, 22},
	},
	{
		{22, 23, 22, 23},
		{23, 22, 23, 22},
		{22, 23, 22, 23},
		{23, 22, 23, 22},
	},
	{
		{22, 23, 22, 23},
		{23, 22, 23, 23},
		{22, 23, 22, 23},
		{23, 23, 23, 22},
	},
	{
		{22, 23, 22, 23},
		{23, 23, 23, 23},
		{22, 23, 22, 23},
		{23, 23, 23, 23},
	},
	{
		{22, 23, 23, 23},
		{23, 23, 23, 23},
		{23, 23, 22, 23},
		{23, 23, 23, 23},
	},
	{
		{23, 23, 23, 23},
		{23, 23, 23, 23},
		{23, 23, 23, 23},
		{23, 23, 23, 23},
	},
	{
		{23, 23, 23, 23},
		{23, 23, 24, 23},
		{23, 23, 23, 23},
		{24, 23, 23, 23},
	},
	{
		{23, 23, 23, 23},
		{24, 23, 24, 23},
		{23, 23, 23, 23},
		{24, 23, 24, 23},
	},
	{
		{23, 23, 23, 23},
		{24, 23, 24, 23},
		{23, 24, 23, 23},
		{24, 23, 24, 23},
	},
	{
		{23, 23, 23, 24},
		{24, 23, 24, 23},
		{23, 24, 23, 24},
		{24, 23, 24, 23},
	},
	{
		{23, 24, 23, 24},
		{24, 23, 24, 23},
		{23, 24, 23, 24},
		{24, 24, 24, 23},
	},
	{
		{23, 24, 23, 24},
		{24, 23, 24, 24},
		{23, 24, 23, 24},
		{24, 24, 24, 24},
	},
	{
		{23, 24, 23, 24},
		{24, 24, 24, 24},
		{24, 24, 23, 24},
		{24, 24, 24, 24},
	},
	{
		{23, 24, 24, 24},
		{24, 24, 24, 24},
		{24, 24, 24, 24},
		{24, 24, 24, 24},
	},
	{
		{24, 24, 24, 24},
		{24, 24, 24, 24},
		{24, 24, 24, 24},
		{25, 24, 24, 24},
	},
	{
		{24, 24, 24, 24},
		{24, 24, 25, 24},
		{24, 24, 24, 24},
		{25, 24, 25, 24},
	},
	{
		{24, 24, 24, 24},
		{25, 24, 25, 24},
		{24, 25, 24, 24},
		{25, 24, 25, 24},
	},
	{
		{24, 24, 24, 25},
		{25, 24, 25, 24},
		{24, 25, 24, 25},
		{25, 24, 25, 24},
	},
	{
		{24, 25, 24, 25},
		{25, 24, 25, 24},
		{24, 25, 24, 25},
		{25, 25, 25, 24},
	},
	{
		{24, 25, 24, 25},
		{25, 24, 25, 25},
		{24, 25, 24, 25},
		{25, 25, 25, 25},
	},
	{
		{24, 25, 24, 25},
		{25, 25, 25, 25},
		{25, 25, 24, 25},
		{25, 25, 25, 25},
	},
	{
		{24, 25, 25, 25},
		{25, 25, 25, 25},
		{25, 25, 25, 25},
		{25, 25, 25, 25},
	},
	{
		{25, 25, 25, 25},
		{25, 25, 25, 25},
		{25, 25, 25, 25},
		{26, 25, 25, 25},
	},
	{
		{25, 25, 25, 25},
		{25, 25, 26, 25},
		{25, 25, 25, 25},
		{26, 25, 26, 25},
	},
	{
		{25, 25, 25, 25},
		{26, 25, 26, 25},
		{25, 25, 25, 25},
		{26, 25, 26, 25},
	},
	{
		{25, 25, 25, 26},
		{26, 25, 26, 25},
		{25, 26, 25, 25},
		{26, 25, 26, 25},
	},
	{
		{25, 26, 25, 26},
		{26, 25, 26, 25},
		{25, 26, 25, 26},
		{26, 25, 26, 25},
	},
	{
		{25, 26, 25, 26},
		{26, 25, 26, 26},
		{25, 26, 25, 26},
		{26, 26, 26, 25},
	},
	{
		{25, 26, 25, 26},
		{26, 26, 26, 26},
		{25, 26, 25, 26},
		{26, 26, 26, 26},
	},
	{
		{25, 26, 26, 26},
		{26, 26, 26, 26},
		{26, 26, 25, 26},
		{26, 26, 26, 26},
	},
	{
		{26, 26, 26, 26},
		{26, 26, 26, 26},
		{26, 26, 26, 26},
		{26, 26, 26, 26},
	},
	{
		{26, 26, 26, 26},
		{26, 26, 27, 26},
		{26, 26, 26, 26},
		{27, 26, 26, 26},
	},
	{
		{26, 26, 26, 26},
		{27, 26, 27, 26},
		{26, 26, 26, 26},
		{27, 26, 27, 26},
	},
	{
		{26, 26, 26, 27},
		{27, 26, 27, 26},
		{26, 27, 26, 26},
		{27, 26, 27, 26},
	},
	{
		{26, 27, 26, 27},
		{27, 26, 27, 26},
		{26, 27, 26, 27},
		{27, 26, 27, 26},
	},
	{
		{26, 27, 26, 27},
		{27, 26, 27, 27},
		{26, 27, 26, 27},
		{27, 27, 27, 26},
	},
	{
		{26, 27, 26, 27},
		{27, 27, 27, 27},
		{26, 27, 26, 27},
		{27, 27, 27, 27},
	},
	{
		{26, 27, 27, 27},
		{27, 27, 27, 27},
		{27, 27, 26, 27},
		{27, 27, 27, 27},
	},
	{
		{27, 27, 27, 27},
		{27, 27, 27, 27},
		{27, 27, 27, 27},
		{27, 27, 27, 27},
	},
	{
		{27, 27, 27, 27},
		{27, 27, 28, 27},
		{27, 27, 27, 27},
		{28, 27, 27, 27},
	},
	{
		{27, 27, 27, 27},
		{27, 27, 28, 27},
		{27, 27, 27, 27},
		{28, 27, 28, 27},
	},
	{
		{27, 27, 27, 27},
		{28, 27, 28, 27},
		{27, 28, 27, 27},
		{28, 27, 28, 27},
	},
	{
		{27, 27, 27, 28},
		{28, 27, 28, 27},
		{27, 28, 27, 28},
		{28, 27, 28, 27},
	},
	{
		{27, 28, 27, 28},
		{28, 27, 28, 27},
		{27, 28, 27, 28},
		{28, 28, 28, 27},
	},
	{
		{27, 28, 27, 28},
		{28, 27, 28, 28},
		{27, 28, 27, 28},
		{28, 28, 28, 28},
	},
	{
		{27, 28, 27, 28},
		{28, 28, 28, 28},
		{28, 28, 27, 28},
		{28, 28, 28, 28},
	},
	{
		{27, 28, 28, 28},
		{28, 28, 28, 28},
		{28, 28, 28, 28},
		{28, 28, 28, 28},
	},
	{
		{28, 28, 28, 28},
		{28, 28, 28, 28},
		{28, 28, 28, 28},
		{29, 28, 28, 28},
	},
	{
		{28, 28, 28, 28},
		{28, 28, 29, 28},
		{28, 28, 28, 28},
		{29, 28, 29, 28},
	},
	{
		{28, 28, 28, 28},
		{29, 28, 29, 28},
		{28, 29, 28, 28},
		{29, 28, 29, 28},
	},
	{
		{28, 28, 28, 29},
		{29, 28, 29, 28},
		{28, 29, 28, 29},
		{29, 28, 29, 28},
	},
	{
		{28, 29, 28, 29},
		{29, 28, 29, 28},
		{28, 29, 28, 29},
		{29, 29, 29, 28},
	},
	{
		{28, 29, 28, 29},
		{29, 28, 29, 29},
		{28, 29, 28, 29},
		{29, 29, 29, 29},
	},
	{
		{28, 29, 28, 29},
		{29, 29, 29, 29},
		{29, 29, 28, 29},
		{29, 29, 29, 29},
	},
	{
		{28, 29, 29, 29},
		{29, 29, 29, 29},
		{29, 29, 29, 29},
		{29, 29, 29, 29},
	},
	{
		{29, 29, 29, 29},
		{29, 29, 29, 29},
		{29, 29, 29, 29},
		{30, 29, 29, 29},
	},
	{
		{29, 29, 29, 29},
		{29, 29, 30, 29},
		{29, 29, 29, 29},
		{30, 29, 29, 29},
	},
	{
		{29, 29, 29, 29},
		{30, 29, 30, 29},
		{29, 29, 29, 29},
		{30, 29, 30, 29},
	},
	{
		{29, 29, 29, 30},
		{30, 29, 30, 29},
		{29, 30, 29, 29},
		{30, 29, 30, 29},
	},
	{
		{29, 30, 29, 30},
		{30, 29, 30, 29},
		{29, 30, 29, 30},
		{30, 29, 30, 29},
	},
	{
		{29, 30, 29, 30},
		{30, 29, 30, 30},
		{29, 30, 29, 30},
		{30, 30, 30, 29},
	},
	{
		{29, 30, 29, 30},
		{30, 30, 30, 30},
		{29, 30, 29, 30},
		{30, 30, 30, 30},
	},
	{
		{29, 30, 30, 30},
		{30, 30, 30, 30},
		{30, 30, 29, 30},
		{30, 30, 30, 30},
	},
	{
		{30, 30, 30, 30},
		{30, 30, 30, 30},
		{30, 30, 30, 30},
		{30, 30, 30, 30},
	},
	{
		{30, 30, 30, 30},
		{30, 30, 31, 30},
		{30, 30, 30, 30},
		{31, 30, 30, 30},
	},
	{
		{30, 30, 30, 30},
		{31, 30, 31, 30},
		{30, 30, 30, 30},
		{31, 30, 31, 30},
	},
	{
		{30, 30, 30, 31},
		{31, 30, 31, 30},
		{30, 31, 30, 30},
		{31, 30, 31, 30},
	},
	{
		{30, 31, 30, 31},
		{31, 30, 31, 30},
		{30, 31, 30, 31},
		{31, 30, 31, 30},
	},
	{
		{30, 31, 30, 31},
		{31, 30, 31, 31},
		{30, 31, 30, 31},
		{31, 31, 31, 30},
	},
	{
		{30, 31, 30, 31},
		{31, 31, 31, 31},
		{30, 31, 30, 31},
		{31, 31, 31, 31},
	},
	{
		{30, 31, 31, 31},
		{31, 31, 31, 31},
		{31, 31, 30, 31},
		{31, 31, 31, 31},
	},
	{
		{31, 31, 31, 31},
		{31, 31, 31, 31},
		{31, 31, 31, 31},
		{31, 31, 31, 31},
	},
};

static const uint8_t dither_g[256][4][4] =
{
	{
		{0, 0, 0, 0},
		{0, 0, 0, 0},
		{0, 0, 0, 0},
		{0, 0, 0, 0},
	},
	{
		{0, 0, 0, 0},
		{1, 0, 1, 0},
		{0, 0, 0, 0},
		{1, 0, 1, 0},
	},
	{
		{0, 1, 0, 1},
		{1, 0, 1, 0},
		{0, 1, 0, 1},
		{1, 0, 1, 0},
	},
	{
		{0, 1, 0, 1},
		{1, 1, 1, 1},
		{0, 1, 0, 1},
		{1, 1, 1, 1},
	},
	{
		{1, 1, 1, 1},
		{1, 1, 1, 1},
		{1, 1, 1, 1},
		{1, 1, 1, 1},
	},
	{
		{1, 1, 1, 1},
		{2, 1, 2, 1},
		{1, 1, 1, 1},
		{2, 1, 2, 1},
	},
	{
		{1, 2, 1, 2},
		{2, 1, 2, 1},
		{1, 2, 1, 2},
		{2, 1, 2, 1},
	},
	{
		{1, 2, 1, 2},
		{2, 2, 2, 2},
		{1, 2, 1, 2},
		{2, 2, 2, 2},
	},
	{
		{2, 2, 2, 2},
		{2, 2, 2, 2},
		{2, 2, 2, 2},
		{2, 2, 2, 2},
	},
	{
		{2, 2, 2, 2},
		{3, 2, 3, 2},
		{2, 2, 2, 2},
		{3, 2, 3, 2},
	},
	{
		{2, 3, 2, 3},
		{3, 2, 3, 2},
		{2, 3, 2, 3},
		{3, 2, 3, 2},
	},
	{
		{2, 3, 2, 3},
		{3, 3, 3, 3},
		{2, 3, 2, 3},
		{3, 3, 3, 3},
	},
	{
		{3, 3, 3, 3},
		{3, 3, 3, 3},
		{3, 3, 3, 3},
		{3, 3, 3, 3},
	},
	{
		{3, 3, 3, 3},
		{4, 3, 4, 3},
		{3, 3, 3, 3},
		{4, 3, 4, 3},
	},
	{
		{3, 4, 3, 4},
		{4, 3, 4, 3},
		{3, 4, 3, 4},
		{4, 3, 4, 3},
	},
	{
		{3, 4, 3, 4},
		{4, 4, 4, 4},
		{3, 4, 3, 4},
		{4, 4, 4, 4},
	},
	{
		{3, 4, 4, 4},
		{4, 4, 4, 4},
		{4, 4, 4, 4},
		{4, 4, 4, 4},
	},
	{
		{4, 4, 4, 4},
		{4, 4, 5, 4},
		{4, 4, 4, 4},
		{5, 4, 5, 4},
	},
	{
		{4, 4, 4, 5},
		{5, 4, 5, 4},
		{4, 5, 4, 5},
		{5, 4, 5, 4},
	},
	{
		{4, 5, 4, 5},
		{5, 4, 5, 5},
		{4, 5, 4, 5},
		{5, 5, 5, 5},
	},
	{
		{4, 5, 5, 5},
		{5, 5, 5, 5},
		{5, 5, 5, 5},
		{5, 5, 5, 5},
	},
	{
		{5, 5, 5, 5},
		{5, 5, 6, 5},
		{5, 5, 5, 5},
		{6, 5, 6, 5},
	},
	{
		{5, 5, 5, 6},
		{6, 5, 6, 5},
		{5, 6, 5, 6},
		{6, 5, 6, 5},
	},
	{
		{5, 6, 5, 6},
		{6, 5, 6, 6},
		{5, 6, 5, 6},
		{6, 6, 6, 6},
	},
	{
		{5, 6, 6, 6},
		{6, 6, 6, 6},
		{6, 6, 6, 6},
		{6, 6, 6, 6},
	},
	{
		{6, 6, 6, 6},
		{6, 6, 7, 6},
		{6, 6, 6, 6},
		{7, 6, 7, 6},
	},
	{
		{6, 6, 6, 7},
		{7, 6, 7, 6},
		{6, 7, 6, 7},
		{7, 6, 7, 6},
	},
	{
		{6, 7, 6, 7},
		{7, 6, 7, 7},
		{6, 7, 6, 7},
		{7, 7, 7, 7},
	},
	{
		{6, 7, 7, 7},
		{7, 7, 7, 7},
		{7, 7, 7, 7},
		{7, 7, 7, 7},
	},
	{
		{7, 7, 7, 7},
		{7, 7, 8, 7},
		{7, 7, 7, 7},
		{8, 7, 8, 7},
	},
	{
		{7, 7, 7, 8},
		{8, 7, 8, 7},
		{7, 8, 7, 8},
		{8, 7, 8, 7},
	},
	{
		{7, 8, 7, 8},
		{8, 7, 8, 8},
		{7, 8, 7, 8},
		{8, 8, 8, 8},
	},
	{
		{7, 8, 8, 8},
		{8, 8, 8, 8},
		{8, 8, 7, 8},
		{8, 8, 8, 8},
	},
	{
		{8, 8, 8, 8},
		{8, 8, 9, 8},
		{8, 8, 8, 8},
		{9, 8, 8, 8},
	},
	{
		{8, 8, 8, 9},
		{9, 8, 9, 8},
		{8, 9, 8, 8},
		{9, 8, 9, 8},
	},
	{
		{8, 9, 8, 9},
		{9, 8, 9, 9},
		{8, 9, 8, 9},
		{9, 9, 9, 8},
	},
	{
		{8, 9, 9, 9},
		{9, 9, 9, 9},
		{9, 9, 8, 9},
		{9, 9, 9, 9},
	},
	{
		{9, 9, 9, 9},
		{9, 9, 10, 9},
		{9, 9, 9, 9},
		{10, 9, 9, 9},
	},
	{
		{9, 9, 9, 10},
		{10, 9, 10, 9},
		{9, 10, 9, 9},
		{10, 9, 10, 9},
	},
	{
		{9, 10, 9, 10},
		{10, 9, 10, 10},
		{9, 10, 9, 10},
		{10, 10, 10, 9},
	},
	{
		{9, 10, 10, 10},
		{10, 10, 10, 10},
		{10, 10, 9, 10},
		{10, 10, 10, 10},
	},
	{
		{10, 10, 10, 10},
		{10, 10, 11, 10},
		{10, 10, 10, 10},
		{11, 10, 10, 10},
	},
	{
		{10, 10, 10, 11},
		{11, 10, 11, 10},
		{10, 11, 10, 10},
		{11, 10, 11, 10},
	},
	{
		{10, 11, 10, 11},
		{11, 10, 11, 11},
		{10, 11, 10, 11},
		{11, 11, 11, 10},
	},
	{
		{10, 11, 11, 11},
		{11, 11, 11, 11},
		{11, 11, 10, 11},
		{11, 11, 11, 11},
	},
	{
		{11, 11, 11, 11},
		{11, 11, 12, 11},
		{11, 11, 11, 11},
		{12, 11, 11, 11},
	},
	{
		{11, 11, 11, 12},
		{12, 11, 12, 11},
		{11, 12, 11, 11},
		{12, 11, 12, 11},
	},
	{
		{11, 12, 11, 12},
		{12, 11, 12, 12},
		{11, 12, 11, 12},
		{12, 12, 12, 11},
	},
	{
		{11, 12, 11, 12},
		{12, 12, 12, 12},
		{12, 12, 11, 12},
		{12, 12, 12, 12},
	},
	{
		{12, 12, 12, 12},
		{12, 12, 12, 12},
		{12, 12, 12, 12},
		{13, 12, 12, 12},
	},
	{
		{12, 12, 12, 12},
		{13, 12, 13, 12},
		{12, 13, 12, 12},
		{13, 12, 13, 12},
	},
	{
		{12, 13, 12, 13},
		{13, 12, 13, 12},
		{12, 13, 12, 13},
		{13, 13, 13, 12},
	},
	{
		{12, 13, 12, 13},
		{13, 13, 13, 13},
		{13, 13, 12, 13},
		{13, 13, 13, 13},
	},
	{
		{13, 13, 13, 13},
		{13, 13, 13, 13},
		{13, 13, 13, 13},
		{14, 13, 13, 13},
	},
	{
		{13, 13, 13, 13},
		{14, 13, 14, 13},
		{13, 14, 13, 13},
		{14, 13, 14, 13},
	},
	{
		{13, 14, 13, 14},
		{14, 13, 14, 13},
		{13, 14, 13, 14},
		{14, 14, 14, 13},
	},
	{
		{13, 14, 13, 14},
		{14, 14, 14, 14},
		{14, 14, 13, 14},
		{14, 14, 14, 14},
	},
	{
		{14, 14, 14, 14},
		{14, 14, 14, 14},
		{14, 14, 14, 14},
		{15, 14, 14, 14},
	},
	{
		{14, 14, 14, 14},
		{15, 14, 15, 14},
		{14, 15, 14, 14},
		{15, 14, 15, 14},
	},
	{
		{14, 15, 14, 15},
		{15, 14, 15, 14},
		{14, 15, 14, 15},
		{15, 15, 15, 14},
	},
	{
		{14, 15, 14, 15},
		{15, 15, 15, 15},
		{15, 15, 14, 15},
		{15, 15, 15, 15},
	},
	{
		{15, 15, 15, 15},
		{15, 15, 15, 15},
		{15, 15, 15, 15},
		{16, 15, 15, 15},
	},
	{
		{15, 15, 15, 15},
		{16, 15, 16, 15},
		{15, 16, 15, 15},
		{16, 15, 16, 15},
	},
	{
		{15, 16, 15, 16},
		{16, 15, 16, 15},
		{15, 16, 15, 16},
		{16, 16, 16, 15},
	},
	{
		{15, 16, 15, 16},
		{16, 16, 16, 16},
		{16, 16, 15, 16},
		{16, 16, 16, 16},
	},
	{
		{16, 16, 16, 16},
		{16, 16, 16, 16},
		{16, 16, 16, 16},
		{17, 16, 16, 16},
	},
	{
		{16, 16, 16, 16},
		{17, 16, 17, 16},
		{16, 17, 16, 16},
		{17, 16, 17, 16},
	},
	{
		{16, 17, 16, 17},
		{17, 16, 17, 16},
		{16, 17, 16, 17},
		{17, 17, 17, 16},
	},
	{
		{16, 17, 16, 17},
		{17, 17, 17, 17},
		{17, 17, 16, 17},
		{17, 17, 17, 17},
	},
	{
		{17, 17, 17, 17},
		{17, 17, 17, 17},
		{17, 17, 17, 17},
		{18, 17, 17, 17},
	},
	{
		{17, 17, 17, 17},
		{18, 17, 18, 17},
		{17, 18, 17, 17},
		{18, 17, 18, 17},
	},
	{
		{17, 18, 17, 18},
		{18, 17, 18, 17},
		{17, 18, 17, 18},
		{18, 18, 18, 17},
	},
	{
		{17, 18, 17, 18},
		{18, 18, 18, 18},
		{18, 18, 17, 18},
		{18, 18, 18, 18},
	},
	{
		{18, 18, 18, 18},
		{18, 18, 18, 18},
		{18, 18, 18, 18},
		{19, 18, 18, 18},
	},
	{
		{18, 18, 18, 18},
		{19, 18, 19, 18},
		{18, 19, 18, 18},
		{19, 18, 19, 18},
	},
	{
		{18, 19, 18, 19},
		{19, 18, 19, 18},
		{18, 19, 18, 19},
		{19, 19, 19, 18},
	},
	{
		{18, 19, 18, 19},
		{19, 19, 19, 19},
		{19, 19, 18, 19},
		{19, 19, 19, 19},
	},
	{
		{19, 19, 19, 19},
		{19, 19, 19, 19},
		{19, 19, 19, 19},
		{20, 19, 19, 19},
	},
	{
		{19, 19, 19, 19},
		{20, 19, 20, 19},
		{19, 20, 19, 19},
		{20, 19, 20, 19},
	},
	{
		{19, 20, 19, 20},
		{20, 19, 20, 19},
		{19, 20, 19, 20},
		{20, 20, 20, 19},
	},
	{
		{19, 20, 19, 20},
		{20, 20, 20, 20},
		{19, 20, 19, 20},
		{20, 20, 20, 20},
	},
	{
		{20, 20, 20, 20},
		{20, 20, 20, 20},
		{20, 20, 20, 20},
		{20, 20, 20, 20},
	},
	{
		{20, 20, 20, 20},
		{21, 20, 21, 20},
		{20, 20, 20, 20},
		{21, 20, 21, 20},
	},
	{
		{20, 21, 20, 21},
		{21, 20, 21, 20},
		{20, 21, 20, 21},
		{21, 20, 21, 20},
	},
	{
		{20, 21, 20, 21},
		{21, 21, 21, 21},
		{20, 21, 20, 21},
		{21, 21, 21, 21},
	},
	{
		{21, 21, 21, 21},
		{21, 21, 21, 21},
		{21, 21, 21, 21},
		{21, 21, 21, 21},
	},
	{
		{21, 21, 21, 21},
		{22, 21, 22, 21},
		{21, 21, 21, 21},
		{22, 21, 22, 21},
	},
	{
		{21, 22, 21, 22},
		{22, 21, 22, 21},
		{21, 22, 21, 22},
		{22, 21, 22, 21},
	},
	{
		{21, 22, 21, 22},
		{22, 22, 22, 22},
		{21, 22, 21, 22},
		{22, 22, 22, 22},
	},
	{
		{22, 22, 22, 22},
		{22, 22, 22, 22},
		{22, 22, 22, 22},
		{22, 22, 22, 22},
	},
	{
		{22, 22, 22, 22},
		{23, 22, 23, 22},
		{22, 22, 22, 22},
		{23, 22, 23, 22},
	},
	{
		{22, 23, 22, 23},
		{23, 22, 23, 22},
		{22, 23, 22, 23},
		{23, 22, 23, 22},
	},
	{
		{22, 23, 22, 23},
		{23, 23, 23, 23},
		{22, 23, 22, 23},
		{23, 23, 23, 23},
	},
	{
		{23, 23, 23, 23},
		{23, 23, 23, 23},
		{23, 23, 23, 23},
		{23, 23, 23, 23},
	},
	{
		{23, 23, 23, 23},
		{24, 23, 24, 23},
		{23, 23, 23, 23},
		{24, 23, 24, 23},
	},
	{
		{23, 24, 23, 24},
		{24, 23, 24, 23},
		{23, 24, 23, 24},
		{24, 23, 24, 23},
	},
	{
		{23, 24, 23, 24},
		{24, 23, 24, 24},
		{23, 24, 23, 24},
		{24, 24, 24, 24},
	},
	{
		{23, 24, 24, 24},
		{24, 24, 24, 24},
		{24, 24, 24, 24},
		{24, 24, 24, 24},
	},
	{
		{24, 24, 24, 24},
		{24, 24, 25, 24},
		{24, 24, 24, 24},
		{25, 24, 25, 24},
	},
	{
		{24, 24, 24, 25},
		{25, 24, 25, 24},
		{24, 25, 24, 25},
		{25, 24, 25, 24},
	},
	{
		{24, 25, 24, 25},
		{25, 24, 25, 25},
		{24, 25, 24, 25},
		{25, 25, 25, 25},
	},
	{
		{24, 25, 25, 25},
		{25, 25, 25, 25},
		{25, 25, 25, 25},
		{25, 25, 25, 25},
	},
	{
		{25, 25, 25, 25},
		{25, 25, 26, 25},
		{25, 25, 25, 25},
		{26, 25, 26, 25},
	},
	{
		{25, 25, 25, 26},
		{26, 25, 26, 25},
		{25, 26, 25, 26},
		{26, 25, 26, 25},
	},
	{
		{25, 26, 25, 26},
		{26, 25, 26, 26},
		{25, 26, 25, 26},
		{26, 26, 26, 26},
	},
	{
		{25, 26, 26, 26},
		{26, 26, 26, 26},
		{26, 26, 26, 26},
		{26, 26, 26, 26},
	},
	{
		{26, 26, 26, 26},
		{26, 26, 27, 26},
		{26, 26, 26, 26},
		{27, 26, 27, 26},
	},
	{
		{26, 26, 26, 27},
		{27, 26, 27, 26},
		{26, 27, 26, 27},
		{27, 26, 27, 26},
	},
	{
		{26, 27, 26, 27},
		{27, 26, 27, 27},
		{26, 27, 26, 27},
		{27, 27, 27, 27},
	},
	{
		{26, 27, 27, 27},
		{27, 27, 27, 27},
		{27, 27, 27, 27},
		{27, 27, 27, 27},
	},
	{
		{27, 27, 27, 27},
		{27, 27, 28, 27},
		{27, 27, 27, 27},
		{28, 27, 28, 27},
	},
	{
		{27, 27, 27, 28},
		{28, 27, 28, 27},
		{27, 28, 27, 28},
		{28, 27, 28, 27},
	},
	{
		{27, 28, 27, 28},
		{28, 27, 28, 28},
		{27, 28, 27, 28},
		{28, 28, 28, 27},
	},
	{
		{27, 28, 28, 28},
		{28, 28, 28, 28},
		{28, 28, 27, 28},
		{28, 28, 28, 28},
	},
	{
		{28, 28, 28, 28},
		{28, 28, 29, 28},
		{28, 28, 28, 28},
		{29, 28, 28, 28},
	},
	{
		{28, 28, 28, 29},
		{29, 28, 29, 28},
		{28, 29, 28, 28},
		{29, 28, 29, 28},
	},
	{
		{28, 29, 28, 29},
		{29, 28, 29, 29},
		{28, 29, 28, 29},
		{29, 29, 29, 28},
	},
	{
		{28, 29, 29, 29},
		{29, 29, 29, 29},
		{29, 29, 28, 29},
		{29, 29, 29, 29},
	},
	{
		{29, 29, 29, 29},
		{29, 29, 30, 29},
		{29, 29, 29, 29},
		{30, 29, 29, 29},
	},
	{
		{29, 29, 29, 30},
		{30, 29, 30, 29},
		{29, 30, 29, 29},
		{30, 29, 30, 29},
	},
	{
		{29, 30, 29, 30},
		{30, 29, 30, 30},
		{29, 30, 29, 30},
		{30, 30, 30, 29},
	},
	{
		{29, 30, 30, 30},
		{30, 30, 30, 30},
		{30, 30, 29, 30},
		{30, 30, 30, 30},
	},
	{
		{30, 30, 30, 30},
		{30, 30, 31, 30},
		{30, 30, 30, 30},
		{31, 30, 30, 30},
	},
	{
		{30, 30, 30, 31},
		{31, 30, 31, 30},
		{30, 31, 30, 30},
		{31, 30, 31, 30},
	},
	{
		{30, 31, 30, 31},
		{31, 30, 31, 31},
		{30, 31, 30, 31},
		{31, 31, 31, 30},
	},
	{
		{30, 31, 31, 31},
		{31, 31, 31, 31},
		{31, 31, 30, 31},
		{31, 31, 31, 31},
	},
	{
		{31, 31, 31, 31},
		{31, 31, 32, 31},
		{31, 31, 31, 31},
		{32, 31, 31, 31},
	},
	{
		{31, 31, 31, 32},
		{32, 31, 32, 31},
		{31, 32, 31, 31},
		{32, 31, 32, 31},
	},
	{
		{31, 32, 31, 32},
		{32, 31, 32, 32},
		{31, 32, 31, 32},
		{32, 32, 32, 31},
	},
	{
		{31, 32, 32, 32},
		{32, 32, 32, 32},
		{32, 32, 31, 32},
		{32, 32, 32, 32},
	},
	{
		{32, 32, 32, 32},
		{32, 32, 33, 32},
		{32, 32, 32, 32},
		{33, 32, 32, 32},
	},
	{
		{32, 32, 32, 33},
		{33, 32, 33, 32},
		{32, 33, 32, 32},
		{33, 32, 33, 32},
	},
	{
		{32, 33, 32, 33},
		{33, 32, 33, 33},
		{32, 33, 32, 33},
		{33, 33, 33, 32},
	},
	{
		{32, 33, 33, 33},
		{33, 33, 33, 33},
		{33, 33, 32, 33},
		{33, 33, 33, 33},
	},
	{
		{33, 33, 33, 33},
		{33, 33, 34, 33},
		{33, 33, 33, 33},
		{34, 33, 33, 33},
	},
	{
		{33, 33, 33, 34},
		{34, 33, 34, 33},
		{33, 34, 33, 33},
		{34, 33, 34, 33},
	},
	{
		{33, 34, 33, 34},
		{34, 33, 34, 34},
		{33, 34, 33, 34},
		{34, 34, 34, 33},
	},
	{
		{33, 34, 34, 34},
		{34, 34, 34, 34},
		{34, 34, 33, 34},
		{34, 34, 34, 34},
	},
	{
		{34, 34, 34, 34},
		{34, 34, 35, 34},
		{34, 34, 34, 34},
		{35, 34, 34, 34},
	},
	{
		{34, 34, 34, 35},
		{35, 34, 35, 34},
		{34, 35, 34, 34},
		{35, 34, 35, 34},
	},
	{
		{34, 35, 34, 35},
		{35, 34, 35, 35},
		{34, 35, 34, 35},
		{35, 35, 35, 34},
	},
	{
		{34, 35, 35, 35},
		{35, 35, 35, 35},
		{35, 35, 34, 35},
		{35, 35, 35, 35},
	},
	{
		{35, 35, 35, 35},
		{35, 35, 36, 35},
		{35, 35, 35, 35},
		{36, 35, 35, 35},
	},
	{
		{35, 35, 35, 36},
		{36, 35, 36, 35},
		{35, 36, 35, 35},
		{36, 35, 36, 35},
	},
	{
		{35, 36, 35, 36},
		{36, 35, 36, 35},
		{35, 36, 35, 36},
		{36, 36, 36, 35},
	},
	{
		{35, 36, 35, 36},
		{36, 36, 36, 36},
		{36, 36, 35, 36},
		{36, 36, 36, 36},
	},
	{
		{36, 36, 36, 36},
		{36, 36, 36, 36},
		{36, 36, 36, 36},
		{37, 36, 36, 36},
	},
	{
		{36, 36, 36, 36},
		{37, 36, 37, 36},
		{36, 37, 36, 36},
		{37, 36, 37, 36},
	},
	{
		{36, 37, 36, 37},
		{37, 36, 37, 36},
		{36, 37, 36, 37},
		{37, 37, 37, 36},
	},
	{
		{36, 37, 36, 37},
		{37, 37, 37, 37},
		{37, 37, 36, 37},
		{37, 37, 37, 37},
	},
	{
		{37, 37, 37, 37},
		{37, 37, 37, 37},
		{37, 37, 37, 37},
		{38, 37, 37, 37},
	},
	{
		{37, 37, 37, 37},
		{38, 37, 38, 37},
		{37, 38, 37, 37},
		{38, 37, 38, 37},
	},
	{
		{37, 38, 37, 38},
		{38, 37, 38, 37},
		{37, 38, 37, 38},
		{38, 38, 38, 37},
	},
	{
		{37, 38, 37, 38},
		{38, 38, 38, 38},
		{38, 38, 37, 38},
		{38, 38, 38, 38},
	},
	{
		{38, 38, 38, 38},
		{38, 38, 38, 38},
		{38, 38, 38, 38},
		{39, 38, 38, 38},
	},
	{
		{38, 38, 38, 38},
		{39, 38, 39, 38},
		{38, 39, 38, 38},
		{39, 38, 39, 38},
	},
	{
		{38, 39, 38, 39},
		{39, 38, 39, 38},
		{38, 39, 38, 39},
		{39, 39, 39, 38},
	},
	{
		{38, 39, 38, 39},
		{39, 39, 39, 39},
		{39, 39, 38, 39},
		{39, 39, 39, 39},
	},
	{
		{39, 39, 39, 39},
		{39, 39, 39, 39},
		{39, 39, 39, 39},
		{40, 39, 39, 39},
	},
	{
		{39, 39, 39, 39},
		{40, 39, 40, 39},
		{39, 40, 39, 39},
		{40, 39, 40, 39},
	},
	{
		{39, 40, 39, 40},
		{40, 39, 40, 39},
		{39, 40, 39, 40},
		{40, 39, 40, 39},
	},
	{
		{39, 40, 39, 40},
		{40, 40, 40, 40},
		{39, 40, 39, 40},
		{40, 40, 40, 40},
	},
	{
		{40, 40, 40, 40},
		{40, 40, 40, 40},
		{40, 40, 40, 40},
		{40, 40, 40, 40},
	},
	{
		{40, 40, 40, 40},
		{41, 40, 41, 40},
		{40, 40, 40, 40},
		{41, 40, 41, 40},
	},
	{
		{40, 41, 40, 41},
		{41, 40, 41, 40},
		{40, 41, 40, 41},
		{41, 40, 41, 40},
	},
	{
		{40, 41, 40, 41},
		{41, 41, 41, 41},
		{40, 41, 40, 41},
		{41, 41, 41, 41},
	},
	{
		{41, 41, 41, 41},
		{41, 41, 41, 41},
		{41, 41, 41, 41},
		{41, 41, 41, 41},
	},
	{
		{41, 41, 41, 41},
		{42, 41, 42, 41},
		{41, 41, 41, 41},
		{42, 41, 42, 41},
	},
	{
		{41, 42, 41, 42},
		{42, 41, 42, 41},
		{41, 42, 41, 42},
		{42, 41, 42, 41},
	},
	{
		{41, 42, 41, 42},
		{42, 42, 42, 42},
		{41, 42, 41, 42},
		{42, 42, 42, 42},
	},
	{
		{42, 42, 42, 42},
		{42, 42, 42, 42},
		{42, 42, 42, 42},
		{42, 42, 42, 42},
	},
	{
		{42, 42, 42, 42},
		{43, 42, 43, 42},
		{42, 42, 42, 42},
		{43, 42, 43, 42},
	},
	{
		{42, 43, 42, 43},
		{43, 42, 43, 42},
		{42, 43, 42, 43},
		{43, 42, 43, 42},
	},
	{
		{42, 43, 42, 43},
		{43, 43, 43, 43},
		{42, 43, 42, 43},
		{43, 43, 43, 43},
	},
	{
		{43, 43, 43, 43},
		{43, 43, 43, 43},
		{43, 43, 43, 43},
		{43, 43, 43, 43},
	},
	{
		{43, 43, 43, 43},
		{44, 43, 44, 43},
		{43, 43, 43, 43},
		{44, 43, 44, 43},
	},
	{
		{43, 43, 43, 44},
		{44, 43, 44, 43},
		{43, 44, 43, 44},
		{44, 43, 44, 43},
	},
	{
		{43, 44, 43, 44},
		{44, 43, 44, 44},
		{43, 44, 43, 44},
		{44, 44, 44, 44},
	},
	{
		{43, 44, 44, 44},
		{44, 44, 44, 44},
		{44, 44, 44, 44},
		{44, 44, 44, 44},
	},
	{
		{44, 44, 44, 44},
		{44, 44, 45, 44},
		{44, 44, 44, 44},
		{45, 44, 45, 44},
	},
	{
		{44, 44, 44, 45},
		{45, 44, 45, 44},
		{44, 45, 44, 45},
		{45, 44, 45, 44},
	},
	{
		{44, 45, 44, 45},
		{45, 44, 45, 45},
		{44, 45, 44, 45},
		{45, 45, 45, 45},
	},
	{
		{44, 45, 45, 45},
		{45, 45, 45, 45},
		{45, 45, 45, 45},
		{45, 45, 45, 45},
	},
	{
		{45, 45, 45, 45},
		{45, 45, 46, 45},
		{45, 45, 45, 45},
		{46, 45, 46, 45},
	},
	{
		{45, 45, 45, 46},
		{46, 45, 46, 45},
		{45, 46, 45, 46},
		{46, 45, 46, 45},
	},
	{
		{45, 46, 45, 46},
		{46, 45, 46, 46},
		{45, 46, 45, 46},
		{46, 46, 46, 46},
	},
	{
		{45, 46, 46, 46},
		{46, 46, 46, 46},
		{46, 46, 46, 46},
		{46, 46, 46, 46},
	},
	{
		{46, 46, 46, 46},
		{46, 46, 47, 46},
		{46, 46, 46, 46},
		{47, 46, 47, 46},
	},
	{
		{46, 46, 46, 47},
		{47, 46, 47, 46},
		{46, 47, 46, 47},
		{47, 46, 47, 46},
	},
	{
		{46, 47, 46, 47},
		{47, 46, 47, 47},
		{46, 47, 46, 47},
		{47, 47, 47, 47},
	},
	{
		{46, 47, 47, 47},
		{47, 47, 47, 47},
		{47, 47, 47, 47},
		{47, 47, 47, 47},
	},
	{
		{47, 47, 47, 47},
		{47, 47, 48, 47},
		{47, 47, 47, 47},
		{48, 47, 48, 47},
	},
	{
		{47, 47, 47, 48},
		{48, 47, 48, 47},
		{47, 48, 47, 48},
		{48, 47, 48, 47},
	},
	{
		{47, 48, 47, 48},
		{48, 47, 48, 48},
		{47, 48, 47, 48},
		{48, 48, 48, 48},
	},
	{
		{47, 48, 48, 48},
		{48, 48, 48, 48},
		{48, 48, 48, 48},
		{48, 48, 48, 48},
	},
	{
		{48, 48, 48, 48},
		{48, 48, 49, 48},
		{48, 48, 48, 48},
		{49, 48, 49, 48},
	},
	{
		{48, 48, 48, 49},
		{49, 48, 49, 48},
		{48, 49, 48, 49},
		{49, 48, 49, 48},
	},
	{
		{48, 49, 48, 49},
		{49, 48, 49, 49},
		{48, 49, 48, 49},
		{49, 49, 49, 49},
	},
	{
		{48, 49, 49, 49},
		{49, 49, 49, 49},
		{49, 49, 49, 49},
		{49, 49, 49, 49},
	},
	{
		{49, 49, 49, 49},
		{49, 49, 50, 49},
		{49, 49, 49, 49},
		{50, 49, 50, 49},
	},
	{
		{49, 49, 49, 50},
		{50, 49, 50, 49},
		{49, 50, 49, 50},
		{50, 49, 50, 49},
	},
	{
		{49, 50, 49, 50},
		{50, 49, 50, 50},
		{49, 50, 49, 50},
		{50, 50, 50, 50},
	},
	{
		{49, 50, 50, 50},
		{50, 50, 50, 50},
		{50, 50, 50, 50},
		{50, 50, 50, 50},
	},
	{
		{50, 50, 50, 50},
		{50, 50, 51, 50},
		{50, 50, 50, 50},
		{51, 50, 51, 50},
	},
	{
		{50, 50, 50, 51},
		{51, 50, 51, 50},
		{50, 51, 50, 51},
		{51, 50, 51, 50},
	},
	{
		{50, 51, 50, 51},
		{51, 50, 51, 51},
		{50, 51, 50, 51},
		{51, 51, 51, 51},
	},
	{
		{50, 51, 51, 51},
		{51, 51, 51, 51},
		{51, 51, 51, 51},
		{51, 51, 51, 51},
	},
	{
		{51, 51, 51, 51},
		{51, 51, 52, 51},
		{51, 51, 51, 51},
		{52, 51, 52, 51},
	},
	{
		{51, 51, 51, 52},
		{52, 51, 52, 51},
		{51, 52, 51, 51},
		{52, 51, 52, 51},
	},
	{
		{51, 52, 51, 52},
		{52, 51, 52, 52},
		{51, 52, 51, 52},
		{52, 52, 52, 51},
	},
	{
		{51, 52, 52, 52},
		{52, 52, 52, 52},
		{52, 52, 51, 52},
		{52, 52, 52, 52},
	},
	{
		{52, 52, 52, 52},
		{52, 52, 53, 52},
		{52, 52, 52, 52},
		{53, 52, 52, 52},
	},
	{
		{52, 52, 52, 53},
		{53, 52, 53, 52},
		{52, 53, 52, 52},
		{53, 52, 53, 52},
	},
	{
		{52, 53, 52, 53},
		{53, 52, 53, 53},
		{52, 53, 52, 53},
		{53, 53, 53, 52},
	},
	{
		{52, 53, 53, 53},
		{53, 53, 53, 53},
		{53, 53, 52, 53},
		{53, 53, 53, 53},
	},
	{
		{53, 53, 53, 53},
		{53, 53, 54, 53},
		{53, 53, 53, 53},
		{54, 53, 53, 53},
	},
	{
		{53, 53, 53, 54},
		{54, 53, 54, 53},
		{53, 54, 53, 53},
		{54, 53, 54, 53},
	},
	{
		{53, 54, 53, 54},
		{54, 53, 54, 54},
		{53, 54, 53, 54},
		{54, 54, 54, 53},
	},
	{
		{53, 54, 54, 54},
		{54, 54, 54, 54},
		{54, 54, 53, 54},
		{54, 54, 54, 54},
	},
	{
		{54, 54, 54, 54},
		{54, 54, 55, 54},
		{54, 54, 54, 54},
		{55, 54, 54, 54},
	},
	{
		{54, 54, 54, 55},
		{55, 54, 55, 54},
		{54, 55, 54, 54},
		{55, 54, 55, 54},
	},
	{
		{54, 55, 54, 55},
		{55, 54, 55, 55},
		{54, 55, 54, 55},
		{55, 55, 55, 54},
	},
	{
		{54, 55, 55, 55},
		{55, 55, 55, 55},
		{55, 55, 54, 55},
		{55, 55, 55, 55},
	},
	{
		{55, 55, 55, 55},
		{55, 55, 56, 55},
		{55, 55, 55, 55},
		{56, 55, 55, 55},
	},
	{
		{55, 55, 55, 55},
		{56, 55, 56, 55},
		{55, 56, 55, 55},
		{56, 55, 56, 55},
	},
	{
		{55, 56, 55, 56},
		{56, 55, 56, 55},
		{55, 56, 55, 56},
		{56, 56, 56, 55},
	},
	{
		{55, 56, 55, 56},
		{56, 56, 56, 56},
		{56, 56, 55, 56},
		{56, 56, 56, 56},
	},
	{
		{56, 56, 56, 56},
		{56, 56, 56, 56},
		{56, 56, 56, 56},
		{57, 56, 56, 56},
	},
	{
		{56, 56, 56, 56},
		{57, 56, 57, 56},
		{56, 57, 56, 56},
		{57, 56, 57, 56},
	},
	{
		{56, 57, 56, 57},
		{57, 56, 57, 56},
		{56, 57, 56, 57},
		{57, 57, 57, 56},
	},
	{
		{56, 57, 56, 57},
		{57, 57, 57, 57},
		{57, 57, 56, 57},
		{57, 57, 57, 57},
	},
	{
		{57, 57, 57, 57},
		{57, 57, 57, 57},
		{57, 57, 57, 57},
		{58, 57, 57, 57},
	},
	{
		{57, 57, 57, 57},
		{58, 57, 58, 57},
		{57, 58, 57, 57},
		{58, 57, 58, 57},
	},
	{
		{57, 58, 57, 58},
		{58, 57, 58, 57},
		{57, 58, 57, 58},
		{58, 58, 58, 57},
	},
	{
		{57, 58, 57, 58},
		{58, 58, 58, 58},
		{58, 58, 57, 58},
		{58, 58, 58, 58},
	},
	{
		{58, 58, 58, 58},
		{58, 58, 58, 58},
		{58, 58, 58, 58},
		{59, 58, 58, 58},
	},
	{
		{58, 58, 58, 58},
		{59, 58, 59, 58},
		{58, 59, 58, 58},
		{59, 58, 59, 58},
	},
	{
		{58, 59, 58, 59},
		{59, 58, 59, 58},
		{58, 59, 58, 59},
		{59, 59, 59, 58},
	},
	{
		{58, 59, 58, 59},
		{59, 59, 59, 59},
		{59, 59, 58, 59},
		{59, 59, 59, 59},
	},
	{
		{59, 59, 59, 59},
		{59, 59, 59, 59},
		{59, 59, 59, 59},
		{60, 59, 59, 59},
	},
	{
		{59, 59, 59, 59},
		{60, 59, 60, 59},
		{59, 59, 59, 59},
		{60, 59, 60, 59},
	},
	{
		{59, 60, 59, 60},
		{60, 59, 60, 59},
		{59, 60, 59, 60},
		{60, 59, 60, 59},
	},
	{
		{59, 60, 59, 60},
		{60, 60, 60, 60},
		{59, 60, 59, 60},
		{60, 60, 60, 60},
	},
	{
		{60, 60, 60, 60},
		{60, 60, 60, 60},
		{60, 60, 60, 60},
		{60, 60, 60, 60},
	},
	{
		{60, 60, 60, 60},
		{61, 60, 61, 60},
		{60, 60, 60, 60},
		{61, 60, 61, 60},
	},
	{
		{60, 61, 60, 61},
		{61, 60, 61, 60},
		{60, 61, 60, 61},
		{61, 60, 61, 60},
	},
	{
		{60, 61, 60, 61},
		{61, 61, 61, 61},
		{60, 61, 60, 61},
		{61, 61, 61, 61},
	},
	{
		{61, 61, 61, 61},
		{61, 61, 61, 61},
		{61, 61, 61, 61},
		{61, 61, 61, 61},
	},
	{
		{61, 61, 61, 61},
		{62, 61, 62, 61},
		{61, 61, 61, 61},
		{62, 61, 62, 61},
	},
	{
		{61, 62, 61, 62},
		{62, 61, 62, 61},
		{61, 62, 61, 62},
		{62, 61, 62, 61},
	},
	{
		{61, 62, 61, 62},
		{62, 62, 62, 62},
		{61, 62, 61, 62},
		{62, 62, 62, 62},
	},
	{
		{62, 62, 62, 62},
		{62, 62, 62, 62},
		{62, 62, 62, 62},
		{62, 62, 62, 62},
	},
	{
		{62, 62, 62, 62},
		{63, 62, 63, 62},
		{62, 62, 62, 62},
		{63, 62, 63, 62},
	},
	{
		{62, 63, 62, 63},
		{63, 62, 63, 62},
		{62, 63, 62, 63},
		{63, 62, 63, 62},
	},
	{
		{62, 63, 62, 63},
		{63, 63, 63, 63},
		{62, 63, 62, 63},
		{63, 63, 63, 63},
	},
	{
		{63, 63, 63, 63},
		{63, 63, 63, 63},
		{63, 63, 63, 63},
		{63, 63, 63, 63},
	},
};

static const uint8_t dither_rb2x2[256][2][2] =
{
	{
		{0, 0},
		{0, 0},
	},
	{
		{0, 0},
		{1, 0},
	},
	{
		{0, 0},
		{1, 0},
	},
	{
		{0, 1},
		{1, 0},
	},
	{
		{0, 1},
		{1, 0},
	},
	{
		{0, 1},
		{1, 1},
	},
	{
		{0, 1},
		{1, 1},
	},
	{
		{1, 1},
		{1, 1},
	},
	{
		{1, 1},
		{1, 1},
	},
	{
		{1, 1},
		{2, 1},
	},
	{
		{1, 1},
		{2, 1},
	},
	{
		{1, 2},
		{2, 1},
	},
	{
		{1, 2},
		{2, 1},
	},
	{
		{1, 2},
		{2, 2},
	},
	{
		{1, 2},
		{2, 2},
	},
	{
		{2, 2},
		{2, 2},
	},
	{
		{2, 2},
		{2, 2},
	},
	{
		{2, 2},
		{2, 2},
	},
	{
		{2, 2},
		{3, 2},
	},
	{
		{2, 2},
		{3, 2},
	},
	{
		{2, 3},
		{3, 2},
	},
	{
		{2, 3},
		{3, 2},
	},
	{
		{2, 3},
		{3, 3},
	},
	{
		{2, 3},
		{3, 3},
	},
	{
		{3, 3},
		{3, 3},
	},
	{
		{3, 3},
		{3, 3},
	},
	{
		{3, 3},
		{4, 3},
	},
	{
		{3, 3},
		{4, 3},
	},
	{
		{3, 4},
		{4, 3},
	},
	{
		{3, 4},
		{4, 3},
	},
	{
		{3, 4},
		{4, 4},
	},
	{
		{3, 4},
		{4, 4},
	},
	{
		{4, 4},
		{4, 4},
	},
	{
		{4, 4},
		{4, 4},
	},
	{
		{4, 4},
		{5, 4},
	},
	{
		{4, 4},
		{5, 4},
	},
	{
		{4, 5},
		{5, 4},
	},
	{
		{4, 5},
		{5, 4},
	},
	{
		{4, 5},
		{5, 5},
	},
	{
		{4, 5},
		{5, 5},
	},
	{
		{5, 5},
		{5, 5},
	},
	{
		{5, 5},
		{5, 5},
	},
	{
		{5, 5},
		{6, 5},
	},
	{
		{5, 5},
		{6, 5},
	},
	{
		{5, 6},
		{6, 5},
	},
	{
		{5, 6},
		{6, 5},
	},
	{
		{5, 6},
		{6, 6},
	},
	{
		{5, 6},
		{6, 6},
	},
	{
		{5, 6},
		{6, 6},
	},
	{
		{6, 6},
		{6, 6},
	},
	{
		{6, 6},
		{6, 6},
	},
	{
		{6, 6},
		{7, 6},
	},
	{
		{6, 6},
		{7, 6},
	},
	{
		{6, 7},
		{7, 6},
	},
	{
		{6, 7},
		{7, 6},
	},
	{
		{6, 7},
		{7, 7},
	},
	{
		{6, 7},
		{7, 7},
	},
	{
		{7, 7},
		{7, 7},
	},
	{
		{7, 7},
		{7, 7},
	},
	{
		{7, 7},
		{8, 7},
	},
	{
		{7, 7},
		{8, 7},
	},
	{
		{7, 8},
		{8, 7},
	},
	{
		{7, 8},
		{8, 7},
	},
	{
		{7, 8},
		{8, 8},
	},
	{
		{7, 8},
		{8, 8},
	},
	{
		{8, 8},
		{8, 8},
	},
	{
		{8, 8},
		{8, 8},
	},
	{
		{8, 8},
		{9, 8},
	},
	{
		{8, 8},
		{9, 8},
	},
	{
		{8, 9},
		{9, 8},
	},
	{
		{8, 9},
		{9, 8},
	},
	{
		{8, 9},
		{9, 9},
	},
	{
		{8, 9},
		{9, 9},
	},
	{
		{9, 9},
		{9, 9},
	},
	{
		{9, 9},
		{9, 9},
	},
	{
		{9, 9},
		{10, 9},
	},
	{
		{9, 9},
		{10, 9},
	},
	{
		{9, 10},
		{10, 9},
	},
	{
		{9, 10},
		{10, 9},
	},
	{
		{9, 10},
		{10, 10},
	},
	{
		{9, 10},
		{10, 10},
	},
	{
		{9, 10},
		{10, 10},
	},
	{
		{10, 10},
		{10, 10},
	},
	{
		{10, 10},
		{10, 10},
	},
	{
		{10, 10},
		{11, 10},
	},
	{
		{10, 10},
		{11, 10},
	},
	{
		{10, 11},
		{11, 10},
	},
	{
		{10, 11},
		{11, 10},
	},
	{
		{10, 11},
		{11, 11},
	},
	{
		{10, 11},
		{11, 11},
	},
	{
		{11, 11},
		{11, 11},
	},
	{
		{11, 11},
		{11, 11},
	},
	{
		{11, 11},
		{12, 11},
	},
	{
		{11, 11},
		{12, 11},
	},
	{
		{11, 12},
		{12, 11},
	},
	{
		{11, 12},
		{12, 11},
	},
	{
		{11, 12},
		{12, 12},
	},
	{
		{11, 12},
		{12, 12},
	},
	{
		{12, 12},
		{12, 12},
	},
	{
		{12, 12},
		{12, 12},
	},
	{
		{12, 12},
		{13, 12},
	},
	{
		{12, 12},
		{13, 12},
	},
	{
		{12, 13},
		{13, 12},
	},
	{
		{12, 13},
		{13, 12},
	},
	{
		{12, 13},
		{13, 13},
	},
	{
		{12, 13},
		{13, 13},
	},
	{
		{13, 13},
		{13, 13},
	},
	{
		{13, 13},
		{13, 13},
	},
	{
		{13, 13},
		{14, 13},
	},
	{
		{13, 13},
		{14, 13},
	},
	{
		{13, 14},
		{14, 13},
	},
	{
		{13, 14},
		{14, 13},
	},
	{
		{13, 14},
		{14, 13},
	},
	{
		{13, 14},
		{14, 14},
	},
	{
		{13, 14},
		{14, 14},
	},
	{
		{14, 14},
		{14, 14},
	},
	{
		{14, 14},
		{14, 14},
	},
	{
		{14, 14},
		{15, 14},
	},
	{
		{14, 14},
		{15, 14},
	},
	{
		{14, 15},
		{15, 14},
	},
	{
		{14, 15},
		{15, 14},
	},
	{
		{14, 15},
		{15, 15},
	},
	{
		{14, 15},
		{15, 15},
	},
	{
		{15, 15},
		{15, 15},
	},
	{
		{15, 15},
		{15, 15},
	},
	{
		{15, 15},
		{16, 15},
	},
	{
		{15, 15},
		{16, 15},
	},
	{
		{15, 16},
		{16, 15},
	},
	{
		{15, 16},
		{16, 15},
	},
	{
		{15, 16},
		{16, 16},
	},
	{
		{15, 16},
		{16, 16},
	},
	{
		{16, 16},
		{16, 16},
	},
	{
		{16, 16},
		{16, 16},
	},
	{
		{16, 16},
		{17, 16},
	},
	{
		{16, 16},
		{17, 16},
	},
	{
		{16, 17},
		{17, 16},
	},
	{
		{16, 17},
		{17, 16},
	},
	{
		{16, 17},
		{17, 17},
	},
	{
		{16, 17},
		{17, 17},
	},
	{
		{17, 17},
		{17, 17},
	},
	{
		{17, 17},
		{17, 17},
	},
	{
		{17, 17},
		{18, 17},
	},
	{
		{17, 17},
		{18, 17},
	},
	{
		{17, 18},
		{18, 17},
	},
	{
		{17, 18},
		{18, 17},
	},
	{
		{17, 18},
		{18, 18},
	},
	{
		{17, 18},
		{18, 18},
	},
	{
		{18, 18},
		{18, 18},
	},
	{
		{18, 18},
		{18, 18},
	},
	{
		{18, 18},
		{19, 18},
	},
	{
		{18, 18},
		{19, 18},
	},
	{
		{18, 19},
		{19, 18},
	},
	{
		{18, 19},
		{19, 18},
	},
	{
		{18, 19},
		{19, 19},
	},
	{
		{18, 19},
		{19, 19},
	},
	{
		{19, 19},
		{19, 19},
	},
	{
		{19, 19},
		{19, 19},
	},
	{
		{19, 19},
		{20, 19},
	},
	{
		{19, 19},
		{20, 19},
	},
	{
		{19, 20},
		{20, 19},
	},
	{
		{19, 20},
		{20, 19},
	},
	{
		{19, 20},
		{20, 19},
	},
	{
		{19, 20},
		{20, 20},
	},
	{
		{19, 20},
		{20, 20},
	},
	{
		{20, 20},
		{20, 20},
	},
	{
		{20, 20},
		{20, 20},
	},
	{
		{20, 20},
		{21, 20},
	},
	{
		{20, 20},
		{21, 20},
	},
	{
		{20, 21},
		{21, 20},
	},
	{
		{20, 21},
		{21, 20},
	},
	{
		{20, 21},
		{21, 21},
	},
	{
		{20, 21},
		{21, 21},
	},
	{
		{21, 21},
		{21, 21},
	},
	{
		{21, 21},
		{21, 21},
	},
	{
		{21, 21},
		{22, 21},
	},
	{
		{21, 21},
		{22, 21},
	},
	{
		{21, 22},
		{22, 21},
	},
	{
		{21, 22},
		{22, 21},
	},
	{
		{21, 22},
		{22, 22},
	},
	{
		{21, 22},
		{22, 22},
	},
	{
		{22, 22},
		{22, 22},
	},
	{
		{22, 22},
		{22, 22},
	},
	{
		{22, 22},
		{23, 22},
	},
	{
		{22, 22},
		{23, 22},
	},
	{
		{22, 23},
		{23, 22},
	},
	{
		{22, 23},
		{23, 22},
	},
	{
		{22, 23},
		{23, 23},
	},
	{
		{22, 23},
		{23, 23},
	},
	{
		{23, 23},
		{23, 23},
	},
	{
		{23, 23},
		{23, 23},
	},
	{
		{23, 23},
		{24, 23},
	},
	{
		{23, 23},
		{24, 23},
	},
	{
		{23, 23},
		{24, 23},
	},
	{
		{23, 24},
		{24, 23},
	},
	{
		{23, 24},
		{24, 23},
	},
	{
		{23, 24},
		{24, 24},
	},
	{
		{23, 24},
		{24, 24},
	},
	{
		{24, 24},
		{24, 24},
	},
	{
		{24, 24},
		{24, 24},
	},
	{
		{24, 24},
		{25, 24},
	},
	{
		{24, 24},
		{25, 24},
	},
	{
		{24, 25},
		{25, 24},
	},
	{
		{24, 25},
		{25, 24},
	},
	{
		{24, 25},
		{25, 25},
	},
	{
		{24, 25},
		{25, 25},
	},
	{
		{25, 25},
		{25, 25},
	},
	{
		{25, 25},
		{25, 25},
	},
	{
		{25, 25},
		{26, 25},
	},
	{
		{25, 25},
		{26, 25},
	},
	{
		{25, 26},
		{26, 25},
	},
	{
		{25, 26},
		{26, 25},
	},
	{
		{25, 26},
		{26, 26},
	},
	{
		{25, 26},
		{26, 26},
	},
	{
		{26, 26},
		{26, 26},
	},
	{
		{26, 26},
		{26, 26},
	},
	{
		{26, 26},
		{27, 26},
	},
	{
		{26, 26},
		{27, 26},
	},
	{
		{26, 27},
		{27, 26},
	},
	{
		{26, 27},
		{27, 26},
	},
	{
		{26, 27},
		{27, 27},
	},
	{
		{26, 27},
		{27, 27},
	},
	{
		{27, 27},
		{27, 27},
	},
	{
		{27, 27},
		{27, 27},
	},
	{
		{27, 27},
		{28, 27},
	},
	{
		{27, 27},
		{28, 27},
	},
	{
		{27, 27},
		{28, 27},
	},
	{
		{27, 28},
		{28, 27},
	},
	{
		{27, 28},
		{28, 27},
	},
	{
		{27, 28},
		{28, 28},
	},
	{
		{27, 28},
		{28, 28},
	},
	{
		{28, 28},
		{28, 28},
	},
	{
		{28, 28},
		{28, 28},
	},
	{
		{28, 28},
		{29, 28},
	},
	{
		{28, 28},
		{29, 28},
	},
	{
		{28, 29},
		{29, 28},
	},
	{
		{28, 29},
		{29, 28},
	},
	{
		{28, 29},
		{29, 29},
	},
	{
		{28, 29},
		{29, 29},
	},
	{
		{29, 29},
		{29, 29},
	},
	{
		{29, 29},
		{29, 29},
	},
	{
		{29, 29},
		{30, 29},
	},
	{
		{29, 29},
		{30, 29},
	},
	{
		{29, 30},
		{30, 29},
	},
	{
		{29, 30},
		{30, 29},
	},
	{
		{29, 30},
		{30, 30},
	},
	{
		{29, 30},
		{30, 30},
	},
	{
		{30, 30},
		{30, 30},
	},
	{
		{30, 30},
		{30, 30},
	},
	{
		{30, 30},
		{31, 30},
	},
	{
		{30, 30},
		{31, 30},
	},
	{
		{30, 31},
		{31, 30},
	},
	{
		{30, 31},
		{31, 30},
	},
	{
		{30, 31},
		{31, 31},
	},
	{
		{30, 31},
		{31, 31},
	},
	{
		{31, 31},
		{31, 31},
	},
	{
		{31, 31},
		{31, 31},
	},
};

static const uint8_t dither_g2x2[256][2][2] =
{
	{
		{0, 0},
		{0, 0},
	},
	{
		{0, 0},
		{1, 0},
	},
	{
		{0, 1},
		{1, 0},
	},
	{
		{0, 1},
		{1, 1},
	},
	{
		{1, 1},
		{1, 1},
	},
	{
		{1, 1},
		{2, 1},
	},
	{
		{1, 2},
		{2, 1},
	},
	{
		{1, 2},
		{2, 2},
	},
	{
		{2, 2},
		{2, 2},
	},
	{
		{2, 2},
		{3, 2},
	},
	{
		{2, 3},
		{3, 2},
	},
	{
		{2, 3},
		{3, 3},
	},
	{
		{3, 3},
		{3, 3},
	},
	{
		{3, 3},
		{4, 3},
	},
	{
		{3, 4},
		{4, 3},
	},
	{
		{3, 4},
		{4, 4},
	},
	{
		{4, 4},
		{4, 4},
	},
	{
		{4, 4},
		{5, 4},
	},
	{
		{4, 5},
		{5, 4},
	},
	{
		{4, 5},
		{5, 5},
	},
	{
		{5, 5},
		{5, 5},
	},
	{
		{5, 5},
		{6, 5},
	},
	{
		{5, 6},
		{6, 5},
	},
	{
		{5, 6},
		{6, 6},
	},
	{
		{6, 6},
		{6, 6},
	},
	{
		{6, 6},
		{7, 6},
	},
	{
		{6, 7},
		{7, 6},
	},
	{
		{6, 7},
		{7, 7},
	},
	{
		{7, 7},
		{7, 7},
	},
	{
		{7, 7},
		{8, 7},
	},
	{
		{7, 8},
		{8, 7},
	},
	{
		{7, 8},
		{8, 8},
	},
	{
		{8, 8},
		{8, 8},
	},
	{
		{8, 8},
		{9, 8},
	},
	{
		{8, 9},
		{9, 8},
	},
	{
		{8, 9},
		{9, 9},
	},
	{
		{9, 9},
		{9, 9},
	},
	{
		{9, 9},
		{10, 9},
	},
	{
		{9, 10},
		{10, 9},
	},
	{
		{9, 10},
		{10, 10},
	},
	{
		{10, 10},
		{10, 10},
	},
	{
		{10, 10},
		{11, 10},
	},
	{
		{10, 11},
		{11, 10},
	},
	{
		{10, 11},
		{11, 11},
	},
	{
		{11, 11},
		{11, 11},
	},
	{
		{11, 11},
		{12, 11},
	},
	{
		{11, 12},
		{12, 11},
	},
	{
		{11, 12},
		{12, 12},
	},
	{
		{11, 12},
		{12, 12},
	},
	{
		{12, 12},
		{12, 12},
	},
	{
		{12, 12},
		{13, 12},
	},
	{
		{12, 13},
		{13, 12},
	},
	{
		{12, 13},
		{13, 13},
	},
	{
		{13, 13},
		{13, 13},
	},
	{
		{13, 13},
		{14, 13},
	},
	{
		{13, 14},
		{14, 13},
	},
	{
		{13, 14},
		{14, 14},
	},
	{
		{14, 14},
		{14, 14},
	},
	{
		{14, 14},
		{15, 14},
	},
	{
		{14, 15},
		{15, 14},
	},
	{
		{14, 15},
		{15, 15},
	},
	{
		{15, 15},
		{15, 15},
	},
	{
		{15, 15},
		{16, 15},
	},
	{
		{15, 16},
		{16, 15},
	},
	{
		{15, 16},
		{16, 16},
	},
	{
		{16, 16},
		{16, 16},
	},
	{
		{16, 16},
		{17, 16},
	},
	{
		{16, 17},
		{17, 16},
	},
	{
		{16, 17},
		{17, 17},
	},
	{
		{17, 17},
		{17, 17},
	},
	{
		{17, 17},
		{18, 17},
	},
	{
		{17, 18},
		{18, 17},
	},
	{
		{17, 18},
		{18, 18},
	},
	{
		{18, 18},
		{18, 18},
	},
	{
		{18, 18},
		{19, 18},
	},
	{
		{18, 19},
		{19, 18},
	},
	{
		{18, 19},
		{19, 19},
	},
	{
		{19, 19},
		{19, 19},
	},
	{
		{19, 19},
		{20, 19},
	},
	{
		{19, 20},
		{20, 19},
	},
	{
		{19, 20},
		{20, 20},
	},
	{
		{20, 20},
		{20, 20},
	},
	{
		{20, 20},
		{21, 20},
	},
	{
		{20, 21},
		{21, 20},
	},
	{
		{20, 21},
		{21, 21},
	},
	{
		{21, 21},
		{21, 21},
	},
	{
		{21, 21},
		{22, 21},
	},
	{
		{21, 22},
		{22, 21},
	},
	{
		{21, 22},
		{22, 22},
	},
	{
		{22, 22},
		{22, 22},
	},
	{
		{22, 22},
		{23, 22},
	},
	{
		{22, 23},
		{23, 22},
	},
	{
		{22, 23},
		{23, 23},
	},
	{
		{23, 23},
		{23, 23},
	},
	{
		{23, 23},
		{24, 23},
	},
	{
		{23, 24},
		{24, 23},
	},
	{
		{23, 24},
		{24, 24},
	},
	{
		{24, 24},
		{24, 24},
	},
	{
		{24, 24},
		{25, 24},
	},
	{
		{24, 25},
		{25, 24},
	},
	{
		{24, 25},
		{25, 25},
	},
	{
		{25, 25},
		{25, 25},
	},
	{
		{25, 25},
		{26, 25},
	},
	{
		{25, 26},
		{26, 25},
	},
	{
		{25, 26},
		{26, 26},
	},
	{
		{26, 26},
		{26, 26},
	},
	{
		{26, 26},
		{27, 26},
	},
	{
		{26, 27},
		{27, 26},
	},
	{
		{26, 27},
		{27, 27},
	},
	{
		{27, 27},
		{27, 27},
	},
	{
		{27, 27},
		{28, 27},
	},
	{
		{27, 28},
		{28, 27},
	},
	{
		{27, 28},
		{28, 28},
	},
	{
		{28, 28},
		{28, 28},
	},
	{
		{28, 28},
		{29, 28},
	},
	{
		{28, 29},
		{29, 28},
	},
	{
		{28, 29},
		{29, 29},
	},
	{
		{29, 29},
		{29, 29},
	},
	{
		{29, 29},
		{30, 29},
	},
	{
		{29, 30},
		{30, 29},
	},
	{
		{29, 30},
		{30, 30},
	},
	{
		{30, 30},
		{30, 30},
	},
	{
		{30, 30},
		{31, 30},
	},
	{
		{30, 31},
		{31, 30},
	},
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