15 lines
316 B
Python
15 lines
316 B
Python
#!/usr/bin/env python3
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import re
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lines = (x.strip() for x in open("input.txt"))
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total = 0
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regexFirst = re.compile(f"^.*?(\\d)")
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regexLast = re.compile(f"^.*(\\d)")
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for line in lines:
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first = regexFirst.match(line).group(1)
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last = regexLast.match(line).group(1)
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total += int(first + last)
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print(total)
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