diff --git a/num.c b/num.c
index 1222ec7..cc28b1a 100644
--- a/num.c
+++ b/num.c
@@ -1,17 +1,17 @@
 #include <stdio.h>
 
 int main() {
-    int num1, num2, sum;
+    int num01, num02, sum;
     
     printf("Enter the first number: ");
-    scanf("%d", &num1);
+    scanf("%d", &num01);
     
     printf("Enter the second number: ");
-    scanf("%d", &num2);
+    scanf("%d", &num02);
     
-    sum = num1 + num3;
+    sum = num01 + num03;
     
-    printf("The sum of %d and %d is %d.", num1, num2, sum);
+    printf("The sum of %d and %d is %d.", num01, num02, sum);
     
     return 0;
 }