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