import turtle
t=turtle.Turtle()
t.speed(0)
def draw_square(x,y):
t.penup()
t.goto(x,y)
t.pendown()
t.forward(100)
t.right(30)
t.forward(100)
t.right(150)
t.forward(100)
t.right(30)
t.forward(100)
t.right(150)
for i in range(12):
draw_square(0,0)
t.right(30)
t.penup()
t.goto(0,-193.14)
t.pendown()
t.circle(193.14)
turtle.done()
