21,43,84
#
in steps
000000 000000
000000
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00007f
0000ff 0000ff
0000ff
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007f00
007f7f 007f7f
007f7f
050a15 050a15
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152b54
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1a3569 1a3569
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244b93 244b93
244b93
ffff00 ffff00
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ffff7f ffff7f
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ffffff ffffff
ffffff
2a56a9 2a56a9
2a56a9