diff --git a/ch04/4.2/4.2.md b/ch04/4.2/4.2.md
index 22472c49..da3b6f5b 100644
--- a/ch04/4.2/4.2.md
+++ b/ch04/4.2/4.2.md
@@ -20,9 +20,8 @@ and the string aa + a*.
 
 1. S =lm=> SS\* => SS+S\* => aS+S\* => aa+S\* => aa+a\*
 2. S =rm=> SS\* => Sa\* => SS+a\* => Sa+a\* => aa+a\*
-3.
-
-    ![4 2 1](https://f.cloud.github.com/assets/340282/469058/c08b4f9c-b6af-11e2-8236-f79c6a56215a.gif)
+3. 
+![4 2 1](https://f.cloud.github.com/assets/340282/469058/c08b4f9c-b6af-11e2-8236-f79c6a56215a.gif)
 
 4. Unambiguous
 5. The set of all postfix expressions consist of addition and multiplication