by steps
000000 000000
000000
ac8136 ac8136
ac8136
00007f 00007f
00007f
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0000ff
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007f7f 007f7f
007f7f
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a98032
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007fff
00ff00 00ff00
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00ff7f 00ff7f
00ff7f
a6802e a6802e
a6802e
00ffff 00ffff
00ffff
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7f007f
a3802b a3802b
a3802b
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a08027 a08027
a08027
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7fff00
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7fff7f
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7fffff
9d8023 9d8023
9d8023
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ff00ff
9a8020 9a8020
9a8020
ff7f00 ff7f00
ff7f00
ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
97801c 97801c
97801c
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
948019 948019
948019