21,7,225
#
in steps
000000 000000
000000
1407e3 1407e3
1407e3
00007f 00007f
00007f
0000ff 0000ff
0000ff
007f00 007f00
007f00
007f7f 007f7f
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1407e2 1407e2
1407e2
007fff 007fff
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00ff7f 00ff7f
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00ffff 00ffff
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7f007f 7f007f
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1507e1 1507e1
1507e1
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7f00ff
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7f7f00
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1507e0 1507e0
1507e0
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1607e0 1607e0
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1607df 1607df
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ffff7f
ffffff ffffff
ffffff
1708df 1708df
1708df