Task: Program Execution
Input (English): s, 2, m, N, f, 9, 1
Output (English): [['s', '2', 'm', 'N', 'f', '9'], ['s', '2', 'm', 'N', 'f', '1'], ['s', '2', 'm', 'N', '9', '1'], ['s', '2', 'm', 'f', '9', '1'], ['s', '2', 'N', 'f', '9', '1'], ['s', 'm', 'N', 'f', '9', '1'], ['2', 'm', 'N', 'f', '9', '1']]