by steps
000000 000000
000000
73877a 73877a
73877a
00007f 00007f
00007f
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0000ff
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007f00
007f7f 007f7f
007f7f
728783 728783
728783
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007fff
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00ff7f
71888c 71888c
71888c
00ffff 00ffff
00ffff
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708895 708895
708895
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6f8aa8
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6e8ab1
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ff7f7f
ff7fff ff7fff
ff7fff
6d8bba 6d8bba
6d8bba
ffff00 ffff00
ffff00
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ffff7f
ffffff ffffff
ffffff
6d8cc4 6d8cc4
6d8cc4