by steps
000000 000000
000000
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00007f
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78ec0d
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007fff
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71da1b 71da1b
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00ffff 00ffff
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6bc728 6bc728
6bc728
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507d5f 507d5f
507d5f
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ffffff ffffff
ffffff
4a6b6d 4a6b6d
4a6b6d