/*#include <stdio.h>
#include <stdlib.h>
int main()
{
printf("Hello world!\n");
return 0;
}
*/
/*#include <stdio.h>
int main ()
{
int a,b;
scanf("%d %d",&a,&b);
printf("%d",(a&&!b)||(!a&&b));
return 0;
}
*/
/*#include <stdio.h>
int main ()
{
int a;
scanf("%d",&a);
printf("%.3lf",(float)9/5*a+32);
return 0;
}
*/
/*#include <stdio.h>
int main ()
{
int a,b;
scanf("%d %d", &a,&b);
printf("%d",(a&&b)||(!a&&!b));
return 0;
}
*/
/*#include <stdio.h>
int main()
{
int a,b;
scanf("%d %d",&a,&b);
printf("%d",!a&&!b);
return 0;
}
*/
/*#include<stdio.h>
int main()
{
int a,b;
scanf("%d %d",&a,&b);
printf("%d+%d=%d\n",a,b,a+b);
printf("%d-%d=%d\n",a,b,a-b);
printf("%d*%d=%d\n",a,b,a*b);
printf("%d/%d=%d\n",a,b,a/b);
return 0;
}
*/