auto save

d.py

 import turtle
 import turtle
 pen=turtle.Pen()
 pen=turtle.Pen()
-d=1
+
 for i in range(200):
 for i in range(200):
-    pen.forward(d)
+    pen.forward(i)
     pen.left(91)
     pen.left(91)
-    d=d+1
+    
 pen.hideturtle()
 pen.hideturtle()
 turtle.done()
 turtle.done()
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