diff --git a/education/software development/ECE1400/Chapter 4 Exercises.md b/education/software development/ECE1400/Chapter 4 Exercises.md
index 395e1f2..2a52e33 100644
--- a/education/software development/ECE1400/Chapter 4 Exercises.md	
+++ b/education/software development/ECE1400/Chapter 4 Exercises.md	
@@ -5,6 +5,7 @@ c. `1`
 d. `0`
 # 3.
 
+
 # 9.
 # 11.
 # 15.