save project

jk.py

 import turtle
 pen=turtle.Pen()
 screen=turtle.Screen()
+len=100
 pen.penup()
 pen.goto(100,-100)
 pen.pendown()
@@ -8,11 +9,11 @@ screen.bgcolor("blue")
 pen.pensize(10)
 pen.pencolor("red")
 pen.left(45)
-pen.forward(100)
-pen.circle(50,180)
+pen.forward(2*len)
+pen.circle(len,180)
 pen.right(90)
-pen.circle(50,180)
-pen.forward(100)
+pen.circle(len,180)
+pen.forward(2*len)
 turtle.done()