15,80,78
#
in steps
000000 000000
000000
031111 031111
031111
00007f 00007f
00007f
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007f00
007f7f 007f7f
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062020
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00ff7f
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00ffff 00ffff
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0c403e 0c403e
0c403e
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7f7f00
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7f7f7f
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0f504e
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125f5d 125f5d
125f5d
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156f6c 156f6c
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187f7b 187f7b
187f7b
ffff00 ffff00
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ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
1c8f8b 1c8f8b
1c8f8b