Task: Program Execution
Input (English): 5, ['Z', '3951', 'U', 'j', 'r', 'U', 'V', '2771', '5363', '2949', 'u', 'q', '1519', 'e', 'B', 'l', 'J', '391', 'z', '5941', 'B']
Output (English): Z, U, u, l, B