by steps
000000 000000
000000
a35353 a35353
a35353
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00007f
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0000ff
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007f7f 007f7f
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9f6549
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007fff
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00ff7f 00ff7f
00ff7f
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9b7840
00ffff 00ffff
00ffff
7f0000 7f0000
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7f007f 7f007f
7f007f
978b37 978b37
978b37
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7f7f7f 7f7f7f
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939e2e
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8fb025
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8bc31c
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ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
87d613 87d613
87d613
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
83e90a 83e90a
83e90a