18,127,28
#
in steps
000000 000000
000000
197f1f 197f1f
197f1f
00007f 00007f
00007f
0000ff 0000ff
0000ff
007f00 007f00
007f00
007f7f 007f7f
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177f1e 177f1e
177f1e
007fff 007fff
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00ff7f
157f1d 157f1d
157f1d
00ffff 00ffff
00ffff
7f0000 7f0000
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7f007f 7f007f
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147f1d 147f1d
147f1d
7f00ff 7f00ff
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127f1c 127f1c
127f1c
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107f1b 107f1b
107f1b
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0f7f1b 0f7f1b
0f7f1b
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ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
0d7f1a 0d7f1a
0d7f1a
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
0c7f1a 0c7f1a
0c7f1a