/*
#include <stdio.h>
#include <stdlib.h>
int main()
{
printf("Hello world!\n");
return 0;
}
*/
/*
#include<stdio.h>
int main()
{
int h,m;
scanf("%d:%d",&h,&m);
printf("%d:%d",h,m);
return 0;
}
*/
/*
#include<stdio.h>
int main()
{
float a;
scanf("%f",&a);
printf("%.2f",a);
return 0;
}
*/
/*
#include<stdio.h>
int main()
{
long long int a,b;
scanf("%lld %lld",&a,&b);
printf("%lld\n",a+b);
printf("%lld\n", a-b);
printf("%lld\n",a*b);
printf("%lld\n",a/b);
printf("%lld\n",a%b);
printf("%.2f",(float)a/b);
return 0;
}
*/