by steps
000000 000000
000000
ff7f7f ff7f7f
ff7f7f
00007f 00007f
00007f
0000ff 0000ff
0000ff
007f00 007f00
007f00
007f7f 007f7f
007f7f
fc7c74 fc7c74
fc7c74
007fff 007fff
007fff
00ff00 00ff00
00ff00
00ff7f 00ff7f
00ff7f
f97a69 f97a69
f97a69
00ffff 00ffff
00ffff
7f0000 7f0000
7f0000
7f007f 7f007f
7f007f
f6785e f6785e
f6785e
7f00ff 7f00ff
7f00ff
7f7f00 7f7f00
7f7f00
7f7f7f 7f7f7f
7f7f7f
f37654 f37654
f37654
7f7fff 7f7fff
7f7fff
7fff00 7fff00
7fff00
7fff7f 7fff7f
7fff7f
7fffff 7fffff
7fffff
f07449 f07449
f07449
ff0000 ff0000
ff0000
ff007f ff007f
ff007f
ff00ff ff00ff
ff00ff
ed723e ed723e
ed723e
ff7f00 ff7f00
ff7f00
ff7fff ff7fff
ff7fff
ea7033 ea7033
ea7033
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
e76e29 e76e29
e76e29