Task: Program Execution
Input (English): 6, 19, ['3667', '9517', '9527', 'j', '1867', 'f', '7465', '1837', 'u', 'T', '5983', '2891', 'W', 'D', '7139', 'K', 'u', 'F', 'J', 'M', '4105', 'e', 'y', 'x', '8531', '1255']
Output (English): JFuK7139DW28915983Tu18377465f