Task: Program Execution
Input (English): 10, 18, ['b', '3425', '7651', '453', '6567', 'u', 'm', 'q', '5025', '1123', '1585', '7183', '3613', 'N', 'y', 'x', 'v', 'U', '5527']
Output (English): UvxyN3613718315851123