Task: Program Execution
Input (English): 4, 6, e, 2, z, o, 8
Output (English): [['4', '6', 'e', '2', 'z', 'o'], ['4', '6', 'e', '2', 'z', '8'], ['4', '6', 'e', '2', 'o', '8'], ['4', '6', 'e', 'z', 'o', '8'], ['4', '6', '2', 'z', 'o', '8'], ['4', 'e', '2', 'z', 'o', '8'], ['6', 'e', '2', 'z', 'o', '8']]