by steps
000000 000000
000000
a189aa a189aa
a189aa
00007f 00007f
00007f
0000ff 0000ff
0000ff
007f00 007f00
007f00
007f7f 007f7f
007f7f
9f89a8 9f89a8
9f89a8
007fff 007fff
007fff
00ff00 00ff00
00ff00
00ff7f 00ff7f
00ff7f
9d89a7 9d89a7
9d89a7
00ffff 00ffff
00ffff
7f0000 7f0000
7f0000
7f007f 7f007f
7f007f
9c89a5 9c89a5
9c89a5
7f00ff 7f00ff
7f00ff
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7f7f00
7f7f7f 7f7f7f
7f7f7f
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9a8aa4
7f7fff 7f7fff
7f7fff
7fff00 7fff00
7fff00
7fff7f 7fff7f
7fff7f
7fffff 7fffff
7fffff
988aa2 988aa2
988aa2
ff0000 ff0000
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ff007f ff007f
ff007f
ff00ff ff00ff
ff00ff
978aa1 978aa1
978aa1
ff7f00 ff7f00
ff7f00
ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
958a9f 958a9f
958a9f
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
948b9e 948b9e
948b9e