by steps
000000 000000
000000
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f4e00b
00007f 00007f
00007f
0000ff 0000ff
0000ff
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d5e319
007fff 007fff
007fff
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00ff7f 00ff7f
00ff7f
b7e728 b7e728
b7e728
00ffff 00ffff
00ffff
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98eb36
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7f7f7f
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7aef45
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5bf353 5bf353
5bf353
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3df762 3df762
3df762
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ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
1efb70 1efb70
1efb70
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff