by steps
000000 000000
000000
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915fe1
00007f 00007f
00007f
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0000ff
007f00 007f00
007f00
007f7f 007f7f
007f7f
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9164df
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007fff
00ff00 00ff00
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00ff7f
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9269dd
00ffff 00ffff
00ffff
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7f007f
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936edc
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9473da
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7fffff
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9578d8
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967dd7 967dd7
967dd7
ff7f00 ff7f00
ff7f00
ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
9782d5 9782d5
9782d5
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
9887d4 9887d4
9887d4