by steps
000000 000000
000000
a777fa a777fa
a777fa
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00007f
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0000ff
007f00 007f00
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007f7f 007f7f
007f7f
a479f8 a479f8
a479f8
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007fff
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00ff7f
a17bf6 a17bf6
a17bf6
00ffff 00ffff
00ffff
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7f007f
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9f7df4
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7f00ff
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7f7f7f 7f7f7f
7f7f7f
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9c7ff2
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7f7fff
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7fff7f 7fff7f
7fff7f
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7fffff
9981f0 9981f0
9981f0
ff0000 ff0000
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ff007f
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ff00ff
9783ee 9783ee
9783ee
ff7f00 ff7f00
ff7f00
ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
9485ec 9485ec
9485ec
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
9288ea 9288ea
9288ea