Task: Program Execution
Input (English): 15, 20, ['6095', 'z', 'P', '4099', 'p', '9407', '2437', '8727', 'P', 'G', 'U', 'y', 'S', '8169', 's', 'u', 'C', 'Z', 'l', 'k', 'v', 'T', '3255', '3505']
Output (English): suCZlk