import turtle
Lily = turtle.Turtle()
for n in range(4):
    Lily.forward(50)
    Lily.right(90)

for n in range(4):
    Lily.forward(60)
    Lily.right(90)
    
    for n in range(4):
        Lily.forward(70)
        Lily.right(90)

    for n in range(4):
        Lily.forward(80)
        Lily.right(90)

    for n in range(4):
        Lily.forward(90)
        Lily.right(90)


