Task: Program Execution
Input (English): 8, ['8561', 'R', '7043', 'y', '8145', '1349', 'k', 'z', '1785', 'C', '3551', '5519', 'U', 'a', 'h', 'T', '833', '4507', 'O']
Output (English): 8561, 1785, 833