Task: Program Execution
Input (English): 3, ['D', '4449', '1791', '5217', 'x', '8695', 'u', 'N', '3743', '9069', 'k', '6441', 'f', 'O', '543', 'm', '3307', '979', '1459', '8679']
Output (English): D, 4449, 1791