15,31,187
#
in steps
000000 000000
000000
131ebe 131ebe
131ebe
00007f 00007f
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0000ff
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111ebc
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ff7fff
0c20b9 0c20b9
0c20b9
ffff00 ffff00
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ffffff ffffff
ffffff
0b21b9 0b21b9
0b21b9