15,90,72
#
in steps
000000 000000
000000
005553 005553
005553
00007f 00007f
00007f
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007f00 007f00
007f00
007f7f 007f7f
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00ffff 00ffff
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0b584b 0b584b
0b584b
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0f5a48
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135b45
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175c43 175c43
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1b5d40 1b5d40
1b5d40
ffff00 ffff00
ffff00
ffff7f ffff7f
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ffffff ffffff
ffffff
1f5f3e 1f5f3e
1f5f3e