#include <stdio.h>
void add(int *a,int *b)
{
    *a = *a+*b;//3
    *b = *a-*b;
    *a = *a-*b;
    printf("After Swap: %d %d",*a,*b);
}
int main() {
int a,b;
scanf("%d %d",&a,&b);
printf("Before Swap: %d %d",a,b);
int z = add(&a,&b);
return 0;
}