Task: Program Execution
Input (English): 6, ['l', '4295', '7807', '5559', 'Q', 'Q', '2507', '2769', 'I', 'J', 'M', '9979', 'U', '2939', 'U', '3375', '5591', '5611', '5495', 's', '6509']
Output (English): 2507, 2769, I, J, M, 9979, U, 2939, U, 3375, 5591, 5611, 5495, s, 6509