Task: Program Execution
Input (English): 1, 3, ['X', '4479', 'b', 'Y', '3553', '185', 'G', 'i', 'Z', '5255', '1813', 'L', 'L', '1209', '6311', '3765', 'F', '753', '6053', '5617']
Output (English): 4479