21,2,177
#
in steps
000000 000000
000000
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00007f
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0000ff
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007f00
007f7f 007f7f
007f7f
05008b 05008b
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00ff00
00ff7f 00ff7f
00ff7f
0a0198 0a0198
0a0198
00ffff 00ffff
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7f007f
0f01a4 0f01a4
0f01a4
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1502b1
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7fffff 7fffff
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1a03bd 1a03bd
1a03bd
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1f03ca 1f03ca
1f03ca
ff7f00 ff7f00
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ff7fff ff7fff
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2404d6 2404d6
2404d6
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
2a05e3 2a05e3
2a05e3