by steps
000000 000000
000000
9b728f 9b728f
9b728f
00007f 00007f
00007f
0000ff 0000ff
0000ff
007f00 007f00
007f00
007f7f 007f7f
007f7f
9a718d 9a718d
9a718d
007fff 007fff
007fff
00ff00 00ff00
00ff00
00ff7f 00ff7f
00ff7f
9a708c 9a708c
9a708c
00ffff 00ffff
00ffff
7f0000 7f0000
7f0000
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7f007f
9a6f8b 9a6f8b
9a6f8b
7f00ff 7f00ff
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7f7f7f
9a6e8a 9a6e8a
9a6e8a
7f7fff 7f7fff
7f7fff
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7fff7f
7fffff 7fffff
7fffff
996d89 996d89
996d89
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ff007f
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ff00ff
996c88 996c88
996c88
ff7f00 ff7f00
ff7f00
ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
996b87 996b87
996b87
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
996a86 996a86
996a86