21,28,249
#
in steps
000000 000000
000000
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0000ff
00007f 00007f
00007f
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007f00
007f7f 007f7f
007f7f
0507fd 0507fd
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00ff7f
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0a0efc
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151cf9
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1a23f8 1a23f8
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1f2af6 1f2af6
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2431f5 2431f5
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ffff00 ffff00
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ffff7f ffff7f
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ffffff ffffff
ffffff
2a38f4 2a38f4
2a38f4