Task: Program Execution
Input (English): 4, ['2201', 'M', '9711', 'Y', '6577', '7593', 'l', '3935', 'E', 'A', 'o', '655', 'K', '7481', '6357', '4517', '9537', 'l']
Output (English): 2201, 6577, E, K, 9537