Task: Program Execution
Input (English): 3, 9, ['y', '5877', '5963', '7733', 'c', 'U', '9497', 'X', '4111', '5007', 'h', '6249', 'e', 'G', '1391', '5707', '2877']
Output (English): 59637733cU9497X4111