by steps
000000 000000
000000
b7733b b7733b
b7733b
00007f 00007f
00007f
0000ff 0000ff
0000ff
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007f00
007f7f 007f7f
007f7f
b7743b b7743b
b7743b
007fff 007fff
007fff
00ff00 00ff00
00ff00
00ff7f 00ff7f
00ff7f
b8753c b8753c
b8753c
00ffff 00ffff
00ffff
7f0000 7f0000
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7f007f 7f007f
7f007f
b8773c b8773c
b8773c
7f00ff 7f00ff
7f00ff
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7f7f7f
b9783d b9783d
b9783d
7f7fff 7f7fff
7f7fff
7fff00 7fff00
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7fff7f 7fff7f
7fff7f
7fffff 7fffff
7fffff
ba793e ba793e
ba793e
ff0000 ff0000
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ff007f
ff00ff ff00ff
ff00ff
ba7b3e ba7b3e
ba7b3e
ff7f00 ff7f00
ff7f00
ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
bb7c3f bb7c3f
bb7c3f
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
bc7e40 bc7e40
bc7e40