Task: Program Execution
Input (English): 4, 6, ['1859', 'L', 'h', 's', 'A', '2491', 'p', 'U', 'T', 'o', '5857', '7429', '8229', '3219', 'N', '7085', 'E', '7543', '7451']
Output (English): sA2491