Task: Program Execution
Input (English): 6, 20, ['S', 'y', 'r', 'v', '4309', 'v', 'M', '1887', 'H', 'H', 'x', 'S', '7111', '9971', 'M', 'P', 'L', '1177', '2823', 'E', '2803', 'q']
Output (English): E32827711LPM17991117SxHH7881Mv