21,0,189
#
in steps
000000 000000
000000
2a007c 2a007c
2a007c
00007f 00007f
00007f
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0000ff
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007f00
007f7f 007f7f
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24008c
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007fff
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1f009c
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1a00ad 1a00ad
1a00ad
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1500bd
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0f00cd
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ff7f7f ff7f7f
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ff7fff ff7fff
ff7fff
0500ee 0500ee
0500ee
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff