by steps
000000 000000
000000
8e82a2 8e82a2
8e82a2
00007f 00007f
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0000ff 0000ff
0000ff
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007f00
007f7f 007f7f
007f7f
9281a0 9281a0
9281a0
007fff 007fff
007fff
00ff00 00ff00
00ff00
00ff7f 00ff7f
00ff7f
97819f 97819f
97819f
00ffff 00ffff
00ffff
7f0000 7f0000
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7f007f
9b819d 9b819d
9b819d
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7f7fff
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7fffff
a4819a a4819a
a4819a
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a98199 a98199
a98199
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ff7f7f
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ff7fff
ad8197 ad8197
ad8197
ffff00 ffff00
ffff00
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ffff7f
ffffff ffffff
ffffff
b28196 b28196
b28196