by steps
000000 000000
000000
00ffff 00ffff
00ffff
00007f 00007f
00007f
0000ff 0000ff
0000ff
007f00 007f00
007f00
007f7f 007f7f
007f7f
10ede1 10ede1
10ede1
007fff 007fff
007fff
00ff00 00ff00
00ff00
00ff7f 00ff7f
00ff7f
20dbc3 20dbc3
20dbc3
7f0000 7f0000
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7f007f
31caa5 31caa5
31caa5
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7f7f00
7f7f7f 7f7f7f
7f7f7f
41b887 41b887
41b887
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7fff7f
7fffff 7fffff
7fffff
51a669 51a669
51a669
ff0000 ff0000
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ff007f ff007f
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62954b 62954b
62954b
ff7f00 ff7f00
ff7f00
ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
72832d 72832d
72832d
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
83720f 83720f
83720f