/*#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\n", b>=a);
}
*/
/*#include<stdio.h>
int main()
{
int a,b;
scanf("%d%d",&a,&b);
printf("%d",a!==b);
}
*/
/*#include<stdio.h>
int main()
{
int a, b;
scanf("%d%d",&a,&b);
printf("%d", ((a&&b)||(b&&a));
}*/
/*#include <stdio.h>
int main()
{
int a,b;
scanf("%d %d",&a,&b);
printf("%d",a==0&&b==0);
}*/