21,67,123
#
in steps
000000 000000
000000
145084 145084
145084
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0000ff
007f00 007f00
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007f7f 007f7f
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144c81
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14497f
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15467d 15467d
15467d
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15437b
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163a75 163a75
163a75
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ffffff ffffff
ffffff
173773 173773
173773