/* Swapping 3 numbers without using extra variable */
#include<stdio.h>
void Swap(int *a,int *b,int *c)
{
   *a = *a + *b + *c;
   *b = *a - (*b + *c);
   *c = *a - (*b + *c);
   *a = *a - (*b + *c);
}
int main()
{
   int x=1,y=2,z=3;
   printf("BEFORE SWAPPING : %d %d %d\n",x,y,z);
   Swap(&x,&y,&z);
   printf("AFTER SWAPPING : %d %d %d",x,y,z);
   return 0;
} /* End of Main */