diff --git a/square.py b/square.py
index c5f1cac..582bf49 100644
--- a/square.py
+++ b/square.py
@@ -1,16 +1,14 @@
 from turtle import *
 
 def square(side_length):
-    forward(side_length)
-    right(90)
-    forward(side_length)
-    right(90)
-    forward(side_length)
-    right(90)
-    forward(side_length)
-    right(90)
+    for _ in range(4):
+        forward(side_length)
+        right(90)
 
 sizes = [20, 40, 60, 80, 100]
 for size in sizes:
-    square(size)
+    square(20)
+    penup()
+    forward(40)
+    pendown()