Task: Program Execution
Input (English): 3, 6, ['u', '7645', '8351', '9867', 'l', '399', 'c', '9025', 'U', 's', 'f', '9803', '2667', '7431', '7863', 'U', 'p', 'r', '1557', 'y', '4255', '2673', 'P', 'D', '2767', 'd']
Output (English): 83519867l399