Task: Program Execution
Input (English): 9, ['6855', 'J', 'f', 'z', '3529', 'C', 'p', 'I', '9249', '3659', '973', '4089', '1771', 'd', 'F', '4993', 'q', '1853', '1747']
Output (English): 6855, 3659, 1747