21,10,245
#
in steps
000000 000000
000000
0000ff 0000ff
0000ff
00007f 00007f
00007f
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007f00
007f7f 007f7f
007f7f
0502fc 0502fc
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00ff7f
0a05fa 0a05fa
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1007f7 1007f7
1007f7
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7f7fff 7f7fff
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1a0cf3 1a0cf3
1a0cf3
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2511ee 2511ee
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ffff00 ffff00
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ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
2b14ec 2b14ec
2b14ec