Task: Program Execution
Input (English): Q, W, 2, 3, 0, U
Output (English): [['Q', 'W', '2', '3', '0'], ['Q', 'W', '2', '3', 'U'], ['Q', 'W', '2', '0', 'U'], ['Q', 'W', '3', '0', 'U'], ['Q', '2', '3', '0', 'U'], ['W', '2', '3', '0', 'U']]