by steps
000000 000000
000000
ff7f00 ff7f00
ff7f00
00007f 00007f
00007f
0000ff 0000ff
0000ff
007f00 007f00
007f00
007f7f 007f7f
007f7f
f18c1f f18c1f
f18c1f
007fff 007fff
007fff
00ff00 00ff00
00ff00
00ff7f 00ff7f
00ff7f
e3993e e3993e
e3993e
00ffff 00ffff
00ffff
7f0000 7f0000
7f0000
7f007f 7f007f
7f007f
d5a65d d5a65d
d5a65d
7f00ff 7f00ff
7f00ff
7f7f00 7f7f00
7f7f00
7f7f7f 7f7f7f
7f7f7f
c7b37c c7b37c
c7b37c
7f7fff 7f7fff
7f7fff
7fff00 7fff00
7fff00
7fff7f 7fff7f
7fff7f
7fffff 7fffff
7fffff
b9c09b b9c09b
b9c09b
ff0000 ff0000
ff0000
ff007f ff007f
ff007f
ff00ff ff00ff
ff00ff
abcdba abcdba
abcdba
ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
9ddad9 9ddad9
9ddad9
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
90e7f8 90e7f8
90e7f8