#include <stdio.h>
#include<stdlib.h>
int main()
{
int a = 3, b = 5;
int tmp;
/*
tmp = a;
a = b;
b = tmp;*/
a = a + b;
b = a - b;
a = a - b;
printf("a = %d, b = %d\n", a, b);
system("pause");
return 0;
}