import turtle
turtle.shape('turtle')
i = 0
n = int(input())
while i < n:
    turtle.forward(50)
    turtle.stamp()
    turtle.right(180)
    turtle.forward(50)
    turtle.left(180 - 360 / n)
    i += 1

1f9d7aede71d6bb027f84d31d535b9f964e92e2f
<mask token>

<mask token>
turtle.shape('turtle')
<mask token>
while i < n:
    turtle.forward(50)
    turtle.stamp()
    turtle.right(180)
    turtle.forward(50)
    turtle.left(180 - 360 / n)
    i += 1

<mask token>
turtle.shape('turtle')
i = 0
n = int(input())
while i < n:
    turtle.forward(50)
    turtle.stamp()
    turtle.right(180)
    turtle.forward(50)
    turtle.left(180 - 360 / n)
    i += 1

import turtle
turtle.shape('turtle')
i = 0
n = int(input())
while i < n:
    turtle.forward(50)
    turtle.stamp()
    turtle.right(180)
    turtle.forward(50)
    turtle.left(180 - 360 / n)
    i += 1
