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