Task: Program Execution
Input (English): 7, 8, ['Y', '5707', 'e', '4229', 'N', '7829', 'V', '8957', 'm', '3841', '451', '707', '249', 'b', '7135', '1421', '437', 'c', 'H', '1417', '4223', 'y', 'f', '1641', 'm']
Output (English): V8957