diff --git a/Exercise1_3.java b/Exercise1_3.java
index 7fb0def..84d14ad 100644
--- a/Exercise1_3.java
+++ b/Exercise1_3.java
@@ -3,8 +3,9 @@ public class Exercise1_3 {
        public static void main(String[] args) {
 		Scanner sc = new Scanner(System.in);
 		int n=sc.nextInt();
-		int sum=0,t;
+		int sum=0;
  //Use for or while loop do the operation
+	       int t;
 		for(int i=0;i<=n;i++)
 		{
 			t = 2*(i-1);
@@ -15,4 +16,4 @@ public static void main(String[] args) {
 		}
 		System.out.println(sum);
 	}
-}
\ No newline at end of file
+}