Task: Program Execution
Input (English): 15, 25, ['U', 'm', 'J', 'n', 'K', 'p', '3021', '4821', 'l', '5417', 'x', 'i', 't', '5667', 'J', '1899', 'v', 'J', 'x', '8627', 's', 't', 'V', 'X', 'g', 'f', 'r', '583']
Output (English): J1899vJx8627stVXg