24 lines
542 B
Python
24 lines
542 B
Python
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with open("input.txt") as file:
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lines = [line.rstrip() for line in file]
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first_digit = None
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last_digit = None
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things = []
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for line in lines:
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first_digit = None
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last_digit = None
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for letter in line:
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if letter.isdigit():
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if first_digit is None:
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first_digit = letter
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last_digit = letter
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else:
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last_digit = letter
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things.append(int(f"{first_digit}{last_digit}"))
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sum = 0
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for thing in things:
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sum += thing
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print(sum)
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