11 lines
215 B
Python
11 lines
215 B
Python
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qs = []
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with open("input.txt") as f:
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for q in f.read().split("\n\n"):
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s = set()
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for a in q.split("\n"):
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s.update(list(a))
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qs.append(s)
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print(sum(map(lambda x: len(x), qs)))
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