15 lines
280 B
Python
15 lines
280 B
Python
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import sys
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S = set()
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for l in sys.stdin.read().splitlines():
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S.add(tuple(map(int,l.split(','))))
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N = 0
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for (x,y,z) in S:
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n = 6
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for (i,j,k) in [(0,0,1),(0,0,-1),(0,1,0),(0,-1,0),(1,0,0),(-1,0,0)]:
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if (x+i,y+j,z+k) in S:
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n -= 1
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N += n
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print(N)
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