Height = int(input("Height of box : "))
Length = int(input("Length of box : "))
Fill = input("Fill? (y/n) - ")

print()
print()
print("This is your box :D")


if Fill == "y".casefold() :
    for i in range(1, Height) :
        print("+ " * Length)
else :
   for i in range(1, Height) :
        if i == 1 :
            print("+ " * Length)
        else :
            print("+ ", "  " * (Length - 4), "  +" )

        if i == (Height - 1) :
            print("+ " * Length)