save project

5

 import turtle
 import turtle
 pen=turtle.Pen()
 pen=turtle.Pen()
-a=i
+colors=["red","orange","yellow","green"]
 for i in range(1,300,2):
 for i in range(1,300,2):
     pen.forward(i)
     pen.forward(i)
+    pen.pencolor(colors[i%4])
     pen.right(91)
     pen.right(91)
     i+=2
     i+=2
 pen.hideturtle()
 pen.hideturtle()