Task: Program Execution
Input (English): N, 1, 9, 1, 5, n, h
Output (English): [['N', '1', '9', '1', '5', 'n'], ['N', '1', '9', '1', '5', 'h'], ['N', '1', '9', '1', 'n', 'h'], ['N', '1', '9', '5', 'n', 'h'], ['N', '1', '1', '5', 'n', 'h'], ['N', '9', '1', '5', 'n', 'h'], ['1', '9', '1', '5', 'n', 'h']]