// editor1
def display_book_ids():
    try:
        n = int(input().strip())
        if n < 0 or n > 10:
            print("Invalid input")
            return
        
        elements = input().strip().split()
        
        if len(elements) != n:
            print("Invalid input")
            return
        
        book_ids = []
        for el in elements:
            # Check if element is numeric integer and within range
            if not (el.lstrip('-').isdigit()):
                print("Invalid input")
                return
            val = int(el)
            if val < -1000 or val > 1000:
                print("Invalid input")
                return
            book_ids.append(val)
        
        # Print the book IDs in a single line
        print(' '.join(map(str, book_ids)))
    
    except:
        print("Invalid input")