by steps
000000 000000
000000
7fff00 7fff00
7fff00
00007f 00007f
00007f
0000ff 0000ff
0000ff
007f00 007f00
007f00
007f7f 007f7f
007f7f
7be60f 7be60f
7be60f
007fff 007fff
007fff
00ff00 00ff00
00ff00
00ff7f 00ff7f
00ff7f
78ce1f 78ce1f
78ce1f
00ffff 00ffff
00ffff
7f0000 7f0000
7f0000
7f007f 7f007f
7f007f
74b52f 74b52f
74b52f
7f00ff 7f00ff
7f00ff
7f7f00 7f7f00
7f7f00
7f7f7f 7f7f7f
7f7f7f
719d3f 719d3f
719d3f
7f7fff 7f7fff
7f7fff
7fff7f 7fff7f
7fff7f
7fffff 7fffff
7fffff
6d844f 6d844f
6d844f
ff0000 ff0000
ff0000
ff007f ff007f
ff007f
ff00ff ff00ff
ff00ff
6a6c5f 6a6c5f
6a6c5f
ff7f00 ff7f00
ff7f00
ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
66536f 66536f
66536f
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
633b7f 633b7f
633b7f