diff --git a/education/software development/ECE1400/Chapter 4 Exercises.md b/education/software development/ECE1400/Chapter 4 Exercises.md
index 278f29c..57cebfa 100644
--- a/education/software development/ECE1400/Chapter 4 Exercises.md	
+++ b/education/software development/ECE1400/Chapter 4 Exercises.md	
@@ -20,3 +20,5 @@ c. `0 8 7`
 d. `15 4 5 4`
 
 # 15.
+a. `i = 2, j = 2`
+b. ``
\ No newline at end of file