save project

1.py

+import turtle
+a=0
+b=0
+len=20
+pen=turtle.Pen()
+for i in range(5):
+    for i in range(4):
+        pen.pendown()
+        pen.forward(len)
+        pen.right(90)
+    pen.penup()
+    len=len+40
+    a=a-20
+    b=b+20
+    pen.goto(a,b)
+pen.hideturtle()
+turtle.done()
+
+
+