diff --git a/00_operators/add_2_integers.c b/00_operators/add_2_integers.c
index 28565f6..7904636 100644
--- a/00_operators/add_2_integers.c
+++ b/00_operators/add_2_integers.c
@@ -2,20 +2,22 @@
 #include <stdio.h>
 
 // start of the main function
-int main(void)
-{
-    printf("Starting the program here: \n");
-
-    int integer1, integer2; // first and second number to be entered by the user
-    // int integer2; // second number to be entered by the user
-
-    printf("Enter the first Integer:\n"); //prompt
-    scanf("%d", &integer1); // read the integer
-
-    printf("Enter the second Integer:\n"); //prompt
-    scanf("%d", &integer2); // read the second integer
-
-    int sum = integer1 + integer2; // assign the value of the total expression to sum
-    printf("Sum is %d\n", sum);
-
-}// end of the main function
\ No newline at end of file
+int main() {
+    int a, b, sum;
+    
+    // Get the first integer from the user
+    printf("Enter the first integer: ");
+    scanf("%d", &a);
+    
+    // Get the second integer from the user
+    printf("Enter the second integer: ");
+    scanf("%d", &b);
+    
+    // Add the two numbers
+    sum = a + b;
+    
+    // Display the result
+    printf("The sum of %d and %d is %d\n", a,b, sum);
+    
+    return 0;
+}// end of the main function
diff --git a/00_operators/comma_operator.c b/00_operators/comma_operator.c
index 1455237..70a53f2 100644
--- a/00_operators/comma_operator.c
+++ b/00_operators/comma_operator.c
@@ -2,9 +2,15 @@
 #include <stdio.h>
 
 /* function main starts program execution */
-int main(void)
+int main()
 {
-    int a;
-    a = 89, 1336;
-    printf("%d\n", a);
-}
\ No newline at end of file
+    int a, b, c;
+
+    a = (b = 5, c = 10);
+
+    printf("a = %d\n", a);
+    printf("b = %d\n", b);
+    printf("c = %d\n", c);
+
+    return 0;
+}