Task: Program Execution
Input (English): 1, 4, ['2717', 'U', 'E', 'h', 'a', 'R', 'G', '9321', '7981', 'v', '3759', '6841', '9253', 'j', 's', '3905', '4065', '8407', 't', 'E', '3573', 's', 'k', '8509', 'R', 'd']
Output (English): hEU7172