18,21,209
#
in steps
000000 000000
000000
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0000ff
00007f 00007f
00007f
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007f00
007f7f 007f7f
007f7f
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0d0fdc
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1215d1
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171ac6
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2024af 2024af
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ffffff ffffff
ffffff
252aa4 252aa4
252aa4