by steps
000000 000000
000000
a65900 a65900
a65900
00007f 00007f
00007f
0000ff 0000ff
0000ff
007f00 007f00
007f00
007f7f 007f7f
007f7f
9b6307 9b6307
9b6307
007fff 007fff
007fff
00ff00 00ff00
00ff00
00ff7f 00ff7f
00ff7f
916d0f 916d0f
916d0f
00ffff 00ffff
00ffff
7f0000 7f0000
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7f007f 7f007f
7f007f
867817 867817
867817
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7f7f00
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7f7f7f
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7c821f
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7f7fff
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7fff7f
7fffff 7fffff
7fffff
728c27 728c27
728c27
ff0000 ff0000
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ff007f
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67972f 67972f
67972f
ff7f00 ff7f00
ff7f00
ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
5da137 5da137
5da137
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
53ac3f 53ac3f
53ac3f