by steps
000000 000000
000000
758a9b 758a9b
758a9b
00007f 00007f
00007f
0000ff 0000ff
0000ff
007f00 007f00
007f00
007f7f 007f7f
007f7f
798996 798996
798996
007fff 007fff
007fff
00ff00 00ff00
00ff00
00ff7f 00ff7f
00ff7f
7d8991 7d8991
7d8991
00ffff 00ffff
00ffff
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7f0000
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7f007f
81888c 81888c
81888c
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7f7f00
7f7f7f 7f7f7f
7f7f7f
868887 868887
868887
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7f7fff
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7fff00
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7fff7f
7fffff 7fffff
7fffff
8a8882 8a8882
8a8882
ff0000 ff0000
ff0000
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ff00ff
8e877d 8e877d
8e877d
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ff7f00
ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
928778 928778
928778
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
978774 978774
978774