Task: Program Execution
Input (English): 3, u, 6, E, 8, 4
Output (English): [['3', 'u', '6', 'E', '8'], ['3', 'u', '6', 'E', '4'], ['3', 'u', '6', '8', '4'], ['3', 'u', 'E', '8', '4'], ['3', '6', 'E', '8', '4'], ['u', '6', 'E', '8', '4']]