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  1. Prepare
  2. Python
  3. Itertools
  4. itertools.combinations_with_replacement()
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itertools.combinations_with_replacement()

  • wweave42
     + 1 comment
    from itertools import combinations_with_replacement
S, k = input().split()
[print(''.join(x)) for x in combinations_with_replacement(sorted(S), int(k))]