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  1. import itertools
  2. print map("".join, itertools.product(*["123", "257", "998"]))
Success #stdin #stdout 0.09s 10840KB
stdin
Standard input is empty
stdout
['129', '129', '128', '159', '159', '158', '179', '179', '178', '229', '229', '228', '259', '259', '258', '279', '279', '278', '329', '329', '328', '359', '359', '358', '379', '379', '378']