by steps
000000 000000
000000
c72828 c72828
c72828
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00007f
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c02a2a
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ba2d2d
00ffff 00ffff
00ffff
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b42f2f
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ae3232
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a73535
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ff7f7f
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ff7fff
9b3a3a 9b3a3a
9b3a3a
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ffff7f
ffffff ffffff
ffffff
953d3d 953d3d
953d3d