Task: Program Execution
Input (English): 3, 3, ['7735', 's', 'C', '9509', '8167', 'S', 'M', '151', 's', 't', '5191', 'Y', '6675', '1035', '7661', '3929', 's', '9539']
Output (English): C, S, s, Y, 7661, 9539