by steps
000000 000000
000000
756b42 756b42
756b42
00007f 00007f
00007f
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0000ff
007f00 007f00
007f00
007f7f 007f7f
007f7f
746f3a 746f3a
746f3a
007fff 007fff
007fff
00ff00 00ff00
00ff00
00ff7f 00ff7f
00ff7f
747432 747432
747432
00ffff 00ffff
00ffff
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7f007f
73782a 73782a
73782a
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737d22
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73811a
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728612
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ff7f7f
ff7fff ff7fff
ff7fff
728a0a 728a0a
728a0a
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
728f03 728f03
728f03