by steps
000000 000000
000000
3ff826 3ff826
3ff826
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0000ff
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007f7f 007f7f
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40f726 40f726
40f726
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41f727 41f727
41f727
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7f007f
42f728 42f728
42f728
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44f729 44f729
44f729
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45f72a 45f72a
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ff7fff ff7fff
ff7fff
46f72b 46f72b
46f72b
ffff00 ffff00
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ffffff ffffff
ffffff
48f72c 48f72c
48f72c