by steps
000000 000000
000000
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17fc17
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00007f
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0000ff
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007f7f 007f7f
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24ec14 24ec14
24ec14
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007fff
00ff00 00ff00
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00ff7f 00ff7f
00ff7f
31dc11 31dc11
31dc11
00ffff 00ffff
00ffff
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7f007f
3ecd0e 3ecd0e
3ecd0e
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4bbd0b 4bbd0b
4bbd0b
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58ad08 58ad08
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659e05 659e05
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ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
728e02 728e02
728e02
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff