Task: Program Execution
Input (English): 4, ['7647', '9625', 'u', 'E', '4765', '2671', '5323', 'e', '245', '9151', '6067', 'B', '8479', '1989', '9155', 'H', '1577', 'U', 'u', 'H', 'z']
Output (English): 7647, 9625, u, E