Task: Program Execution
Input (English): 0, 8, 3, 4, U, p, s
Output (English): [['0', '8', '3', '4', 'U', 'p'], ['0', '8', '3', '4', 'U', 's'], ['0', '8', '3', '4', 'p', 's'], ['0', '8', '3', 'U', 'p', 's'], ['0', '8', '4', 'U', 'p', 's'], ['0', '3', '4', 'U', 'p', 's'], ['8', '3', '4', 'U', 'p', 's']]