#include<stdio.h>
void main()
{
int a = 1,b = 2;
a = a + b;
b = a - b;
a = a - b;
printf("%d,%d",a,b);
}
#include<stdio.h>
void main()
{
int a = 1,b = 2;
a = a + b;
b = a - b;
a = a - b;
printf("%d,%d",a,b);
}