def print_box(width, height):
    for _ in range(height):
        row = '+ ' * width
        print(row)

def main():
    try:
        width = int(input("Enter a width: "))
        height = int(input("Enter a height: "))

        print("\nHere is your box:")
        print_box(width, height)

    except ValueError:
        print("Please enter valid integers for width and height.")

if __name__ == "__main__":
    main()