Task: Program Execution
Input (English): 8, I, U, K, 4, I
Output (English): [['8', 'I', 'U', 'K', '4'], ['8', 'I', 'U', 'K', 'I'], ['8', 'I', 'U', '4', 'I'], ['8', 'I', 'K', '4', 'I'], ['8', 'U', 'K', '4', 'I'], ['I', 'U', 'K', '4', 'I']]