Task: Program Execution
Input (English): 6, 7, 1, 2, S, 9, 0
Output (English): [['6', '7', '1', '2', 'S', '9'], ['6', '7', '1', '2', 'S', '0'], ['6', '7', '1', '2', '9', '0'], ['6', '7', '1', 'S', '9', '0'], ['6', '7', '2', 'S', '9', '0'], ['6', '1', '2', 'S', '9', '0'], ['7', '1', '2', 'S', '9', '0']]