21,18,67
#
in steps
000000 000000
000000
13113d 13113d
13113d
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0000ff
007f00 007f00
007f00
007f7f 007f7f
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13113e
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141140
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141241
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151244 151244
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161347 161347
161347
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ffffff ffffff
ffffff
171449 171449
171449