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- #!/usr/bin/env python3
- import sys
- from collections import Counter
- # part 1
- lines = [line.rstrip() for line in sys.stdin]
- print(''.join(Counter(pos).most_common(1)[0][0]
- for pos in zip(*lines)))
- # part 2
- print(''.join(min((v, k) for k, v in Counter(pos).items())[1]
- for pos in zip(*lines)))
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