diff --git a/swap_the_2_numbers_without_3rd_var.c b/swap_the_2_numbers_without_3rd_var.c
new file mode 100644
index 0000000..08321aa
--- /dev/null
+++ b/swap_the_2_numbers_without_3rd_var.c
@@ -0,0 +1,16 @@
+#include <stdio.h>
+int main () {
+int a,b;
+
+  printf ("enter the value of num1 and num2 :");
+   scanf ("%d %d", &a , &b );
+
+   a = a + b ;
+   b = a - b ;
+   a = a - b ;
+
+    printf ("After swapping value  of  a  :  %d " , a);
+    printf ("After swapping value  of  b  :  %d  ", b);
+
+    return 0;
+  }