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11110001110001111111
1000000000000rrr1111
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00--_-0D0000001rrrr1
00-0000D0-00001111r1
00---000--_-001111r1
00-0------00001000r1
00000000000011000011
100000000011110zNN01
11000111111111000001

00000s00000000000000
0000s00000ss00000000
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0s000000000000000000
s00v0v000000s0000000
s0000000000000000000
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0s000ssss00000s00000
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7
8
1