Task: Program Execution
Input (English): 3, 18, ['6561', '3871', 'U', 'x', '3585', '3019', '8405', '9853', 'V', 'M', 'k', '1269', 'm', '5813', '4963', 'V', '4091', '5547', '6369', 'z', '697']
Output (English): 74551904V36943185m9621kMV3589504891035853xU