Task: Program Execution
Input (English): Q, f, 4, E, u, m, 3
Output (English): [['Q', 'f', '4', 'E', 'u', 'm'], ['Q', 'f', '4', 'E', 'u', '3'], ['Q', 'f', '4', 'E', 'm', '3'], ['Q', 'f', '4', 'u', 'm', '3'], ['Q', 'f', 'E', 'u', 'm', '3'], ['Q', '4', 'E', 'u', 'm', '3'], ['f', '4', 'E', 'u', 'm', '3']]