Task: Program Execution
Input (English): 5, 10, ['W', '8365', 'U', '4849', 'L', '8787', '6533', 'X', 'w', '9501', 'd', 'k', 'v', 'F', '6893', '1303', 'u', 'a']
Output (English): 9501wX65338787L