save project

diy1.py

@@ -3,7 +3,10 @@ def tree(n):
     if n>=50:
         pen.forward(n)
         pen.right(30)
-        tree(50)
+        tree(n-50)
+        pen.left(30)
+        pen.left(30)
+        tree(n-50)
         pen.up()
         pen.backward(n)
         pen.down()