#include<stdio.h>
int main ()
{
int x=10,y=12;
int t;
printf("x=%d y=%d\n",x,y);
t=x;
x=y;
y=t;
printf("x=%d y=%d\n",x,y);
return(0);
}
int main ()
{
int x=10,y=12;
int t;
printf("x=%d y=%d\n",x,y);
t=x;
x=y;
y=t;
printf("x=%d y=%d\n",x,y);
return(0);
}