diff --git a/education/software development/ECE1400/Chapter 4 Exercises.md b/education/software development/ECE1400/Chapter 4 Exercises.md
index baa68b5..4d07298 100644
--- a/education/software development/ECE1400/Chapter 4 Exercises.md	
+++ b/education/software development/ECE1400/Chapter 4 Exercises.md	
@@ -1,7 +1,7 @@
 # 1.
 a. `1 2`
 b. `0`
-c. 
+c. `1`
 # 3.
 
 # 9.