diff --git a/lec14/report14.md b/lec14/report14.md
index 6ef2ded61e3e310ef54af89767cbe8d22d286832..788516a9c0afb0281159047f2dc09d3492e39596 100644
--- a/lec14/report14.md
+++ b/lec14/report14.md
@@ -27,3 +27,4 @@
     * block <br>
 ![lec14-2](../Image/lec14-2.jpg)    
 
+