Task: Program Execution
Input (English): 7, ['8877', '2493', 'n', '8419', 'R', '5573', '8449', 'S', '9983', '5439', '8769', '3335', '4229', 'n', '9457', 's', '8579', '3723', '4543', 'u', 'c', 'o', '5065', '2383', 'o', '7691']
Output (English): 8877, S, 9457, o