Task: Program Execution
Input (English): 4, w, 6, 9, 0, 9, 1
Output (English): [['4', 'w', '6', '9', '0', '9'], ['4', 'w', '6', '9', '0', '1'], ['4', 'w', '6', '9', '9', '1'], ['4', 'w', '6', '0', '9', '1'], ['4', 'w', '9', '0', '9', '1'], ['4', '6', '9', '0', '9', '1'], ['w', '6', '9', '0', '9', '1']]