import turtle
f=0.8
turtle.reset()
def farn(hoehe, zaehler):
    if (zaehler<4):
        (x,y)=turtle.position()
        w=turtle.heading()
        turtle.forward(hoehe)
        h=hoehe
        while(h>5.0):
            h = h*0.8
            turtle.left(80)
            farn(h*0.5,zaehler+1)
            turtle.right(80)
            turtle.forward(h/5)
            turtle.right(80)
            farn(h*0.5,zaehler+1)
            turtle.left(80)
            turtle.forward(h)
            turtle.left(5)
        turtle.up()
        turtle.setx(x)
        turtle.sety(y)
        turtle.setheading(w)
        turtle.down()

turtle.width(5)
turtle.setheading(90)
turtle.up()
turtle.backward(250)
turtle.down()
turtle.speed('fastest')
turtle.color("black")
farn(89.0,0)