13 lines
371 B
Python
13 lines
371 B
Python
problems = input().strip().split(";")
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expanded = []
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for problem in problems:
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if "-" in problem:
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start = int(problem[: problem.index("-")])
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stop = int(problem[problem.index("-") + 1 :])
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for i in range(start, stop + 1):
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expanded.append(i)
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else:
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expanded.append(int(problem))
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expanded = set(expanded)
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print(len(expanded))
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