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#!/usr/bin/env python3
import sys
from itertools import zip_longest
def merge_strings(words: list) -> str:
"""Merge strings together by taking the first character from each word,
then the second, and so on.
Args:
words (list): A list of words
Returns:
str: The merged string
"""
return ''.join(''.join(s) for s in zip_longest(*words, fillvalue=''))
def main():
result = merge_strings(sys.argv[1:])
print(result)
if __name__ == '__main__':
main()
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