by steps
000000 000000
000000
72818e 72818e
72818e
00007f 00007f
00007f
0000ff 0000ff
0000ff
007f00 007f00
007f00
007f7f 007f7f
007f7f
6d8293 6d8293
6d8293
007fff 007fff
007fff
00ff00 00ff00
00ff00
00ff7f 00ff7f
00ff7f
698399 698399
698399
00ffff 00ffff
00ffff
7f0000 7f0000
7f0000
7f007f 7f007f
7f007f
64849f 64849f
64849f
7f00ff 7f00ff
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7f7f00
7f7f7f 7f7f7f
7f7f7f
6085a5 6085a5
6085a5
7f7fff 7f7fff
7f7fff
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7fff00
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7fff7f
7fffff 7fffff
7fffff
5b86aa 5b86aa
5b86aa
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5787b0 5787b0
5787b0
ff7f00 ff7f00
ff7f00
ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
5288b6 5288b6
5288b6
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
4e89bc 4e89bc
4e89bc