21,9,172
#
in steps
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000000
1a0b99 1a0b99
1a0b99
00007f 00007f
00007f
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0000ff
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007f00
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180a9d 180a9d
180a9d
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00ff7f
170aa2 170aa2
170aa2
00ffff 00ffff
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1609a7 1609a7
1609a7
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1509ac
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1308b1 1308b1
1308b1
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ff7fff ff7fff
ff7fff
1107bb 1107bb
1107bb
ffff00 ffff00
ffff00
ffff7f ffff7f
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ffffff ffffff
ffffff
1007c0 1007c0
1007c0