Task: Program Execution
Input (English): 5, 6, ['s', '6609', 'X', '6185', '1971', 'g', 'c', 'L', 'A', '3435', 'G', 't', '4255', 'C', '7571', '3147', 'k', '39', '1841', '6885', 'g']
Output (English): 1971