15
3 4 0
6 1 0
14 13 0
-1 -1 -1
-7 -3 -2
-1 -1 -9
3 5 -2
2 -1 0
3 2 0
5 7 0
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2 5 7
1 2 7
6 1 4
2 -1 0
3 2 0
5 7 0
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2 5 7
1 2 7
6 1 0
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3 2 0
5 7 0
1 1 3
2 5 -1
1 2 7
6 1 1
1 1 0
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0 0 0
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1 1 0
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-10 0 3
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1 2 -1
0 5 3
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3 4 -1
4 5 -1
5 7 -1
-100 100 -2
3 4 0
4 5 0
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3 4 -1
4 5 -1
5 7 -1
-100 100 2
3 4 0
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3 4 1
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-100 100 -2
500 500 0
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500 500 500
-500 -500 -500
-500 -500 500
500 -500 500
500 500 0
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500 500 500
0 0 0
-500 -500 500
500 -500 500
500 500 0
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-500 500 0
500 500 500
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-500 -500 500
500 -500 500
500 500 0
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-500 500 0
500 500 -500
0 0 -1
-500 -500 -500
500 -500 -500
500 500 0
-500 -500 0
-500 500 0
500 500 -500
0 0 1
-500 -500 -500
500 -500 -500
