21,19,84
#
in steps
000000 000000
000000
12105a 12105a
12105a
00007f 00007f
00007f
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0000ff
007f00 007f00
007f00
007f7f 007f7f
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121058
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007fff
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00ff7f
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131157
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141255 141255
141255
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151354
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17154f 17154f
17154f
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ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
18164e 18164e
18164e