Task: Program Execution
Input (English): 8, z, U, 1, 5, 0
Output (English): [['8', 'z', 'U', '1', '5'], ['8', 'z', 'U', '1', '0'], ['8', 'z', 'U', '5', '0'], ['8', 'z', '1', '5', '0'], ['8', 'U', '1', '5', '0'], ['z', 'U', '1', '5', '0']]