by steps
000000 000000
000000
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7f7f00
00007f 00007f
00007f
0000ff 0000ff
0000ff
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007f00
007f7f 007f7f
007f7f
728903 728903
728903
007fff 007fff
007fff
00ff00 00ff00
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00ff7f 00ff7f
00ff7f
659407 659407
659407
00ffff 00ffff
00ffff
7f0000 7f0000
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7f007f 7f007f
7f007f
599e0b 599e0b
599e0b
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7f7f7f 7f7f7f
7f7f7f
4ca90f 4ca90f
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3fb412 3fb412
3fb412
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33be16 33be16
33be16
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ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
26c91a 26c91a
26c91a
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
1ad41e 1ad41e
1ad41e