by steps
000000 000000
000000
6a718f 6a718f
6a718f
00007f 00007f
00007f
0000ff 0000ff
0000ff
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007f7f 007f7f
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6a718e 6a718e
6a718e
007fff 007fff
007fff
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00ff7f 00ff7f
00ff7f
6b728d 6b728d
6b728d
00ffff 00ffff
00ffff
7f0000 7f0000
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7f007f 7f007f
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6b738c 6b738c
6b738c
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6c748c
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7f7fff
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7fffff
6d748b 6d748b
6d748b
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6d758a 6d758a
6d758a
ff7f00 ff7f00
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ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
6e7689 6e7689
6e7689
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
6f7789 6f7789
6f7789