21,60,112
#
in steps
000000 000000
000000
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00007f
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0000ff
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007f7f 007f7f
007f7f
050f1c 050f1c
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0a1e38
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0f2d54
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153c70
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1a4b8c 1a4b8c
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ff7fff ff7fff
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2469c4 2469c4
2469c4
ffff00 ffff00
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ffffff ffffff
ffffff
2a79e0 2a79e0
2a79e0