/*
#include <stdio.h>
int main()
{
int a;
scanf("%d",&a);
printf("%d %d",a/60,a%60);
}
*/
/*
#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);
}
*/
/*
#include<stdio.h>
int main()
{
int a,b;
scanf("%d %d",&a,&b);
printf("%.1f",(float)a*b/2);
}
*/
/*
#include<stdio.h>
int main()
{
int n;
scanf("%d",&n);
printf("%.3lf",9.0/5*n+32);
}
*/
// && || !