blob: 0df8d8eab352662fbe6d730186cab781188d01a1 (
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from functools import reduce
from collections import defaultdict
d = defaultdict(int)
d[(0, 0)] = 1
def reducer(state, move):
d, pos = state
npos = (pos[0] + move[0], pos[1] + move[1])
d[npos] += 1
return (d, (npos))
print(len(reduce(reducer, ({'^': (0, 1), 'v': (0, -1), '>': (1, 0), '<': (-1, 0)}[c] for c in open('input').read().rstrip('\n')), (d, (0, 0)))[0]))
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