Task: Program Execution
Input (English): 10, 13, ['3961', '4421', 'k', '8875', '4011', '2417', '2813', '6155', 'm', '4997', 'r', '455', 'I', '4017', '6623', '8093', '6343', '4773', '6221', '6627', '4327', '6779', '1933', 'a']
Output (English): 4997r455I