C PROGRAM TO ADD TWO NUMBERS WITHOUT USING THIRD VARIABLE

#include<stdio.h>
int main()
{
     int x,y;
     printf(" ***PROGRAM TO ADD TWO NUMBERS WITHOUT USING
                THIRD VARIABLE*** ");
     printf("\n Enter the first number to be added: ");
     scanf("%d",&x);         /* taking x value from keyboard*/
     printf("\n Enter the second number to be added: ");
     scanf("%d",&y);         /* taking y value from keyboard*/
     x = x + y;     /*assining the value of sum of x and y to x*/

     printf("\n The sum of two numbers is: %d\n",x);    /*printing the sum.*/
     return 0;
}

Sample Output: