37,51,69
#
in steps
000000 000000
000000
243143 243143
243143
00007f 00007f
00007f
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0000ff
007f00 007f00
007f00
007f7f 007f7f
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00ff7f 00ff7f
00ff7f
243244 243244
243244
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7f007f 7f007f
7f007f
253244 253244
253244
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7f7f7f
253345 253345
253345
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253346 253346
253346
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263447 263447
263447
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ffff7f
ffffff ffffff
ffffff
273548 273548
273548