Task: Program Execution
Input (English): 5, 14, ['C', 'O', 'j', '8687', '2287', '8935', '5949', 'b', '3957', '4181', 'W', 'X', 'v', '1973', 'a', '3155', '3613', '8321', 'D', 'B', 'u', 'b']
Output (English): 228789355949b39574181WXv1973