21 lines
476 B
Python
21 lines
476 B
Python
import re
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import sys
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def substitute_digits(match):
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digits = match.group()
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substitution_dict = {str(i): chr(ord('a') + i) for i in range(10)}
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return ''.join(substitution_dict[digit] for digit in digits)
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def substitute_4digits(input_string):
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pattern = re.compile(r'\d{4}')
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result = re.sub(pattern, substitute_digits, input_string)
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return result
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for line in sys.stdin:
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result = substitute_4digits(line)
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sys.stdout.write(result)
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