Task: Program Execution
Input (English): 6, 1, 8, p, o, 4
Output (English): [['6', '1', '8', 'p', 'o'], ['6', '1', '8', 'p', '4'], ['6', '1', '8', 'o', '4'], ['6', '1', 'p', 'o', '4'], ['6', '8', 'p', 'o', '4'], ['1', '8', 'p', 'o', '4']]