21,28,137
#
in steps
000000 000000
000000
0f1d8d 0f1d8d
0f1d8d
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00007f
0000ff 0000ff
0000ff
007f00 007f00
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101c8c 101c8c
101c8c
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00ff7f 00ff7f
00ff7f
121c8b 121c8b
121c8b
00ffff 00ffff
00ffff
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131c8a 131c8a
131c8a
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151c89 151c89
151c89
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171b88
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181b87 181b87
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ff7f7f
ff7fff ff7fff
ff7fff
1a1b86 1a1b86
1a1b86
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
1c1b85 1c1b85
1c1b85