import turtle

turtle.shape('turtle')
turtle.forward(150)
turtle.left(90)
turtle.forward(150)
turtle.left(90)
turtle.forward(150)
turtle.left(90)
turtle.forward(150)
turtle.left(90)
turtle.forward(150)
turtle.left(90)
turtle.forward(150)
turtle.left(90)
turtle.forward(150)
turtle.left(90)
turtle.forward(150)
turtle.left(90)
turtle.forward(150)
turtle.left(90)
turtle.forward(150)
