by steps
000000 000000
000000
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7f7f00
00007f 00007f
00007f
0000ff 0000ff
0000ff
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728b1c 728b1c
728b1c
007fff 007fff
007fff
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00ff7f
669738 669738
669738
00ffff 00ffff
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5aa354
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41bb8c 41bb8c
41bb8c
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35c7a8 35c7a8
35c7a8
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ff7f7f
ff7fff ff7fff
ff7fff
29d3c4 29d3c4
29d3c4
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
1ddfe0 1ddfe0
1ddfe0