/*#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,b,c;
scanf("%d %d %d",&a,&b,&c);
printf("%d",(a>b?b:a)<c?(a<b?a:b):c);
}
*/
/*#include<stdio.h>
int main()
{
int a,b,c;
scanf("%d %d %d",&a,&b,&c);
printf("%.2f",(float)(a+b+c)/3);
}
*/
/*#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,c;
scanf("%d",&a);
b=a/60;
c=a%60;
printf("%d %d",b,c);
}*/
/*#include<stdio.h>
int main()
{ int i,n,a,sum=0;
scanf("%d",&n);
for (i=1; i<=n; i++){
scanf("%d",&a);
sum+=a;
}
printf("%d",sum);
}
*/
/*#include<stdio.h>
int main()
{
int i,n,a,sum=0;
scanf("%d", &n);
for (i=1; i<=n; i++)
{
scanf("%d",&a);
if (a%5==0)
{
sum+=a;
}
}
printf("%d",sum);
}
*/
/*#include<stdio.h>
int main()
{
int n,i,sum=0;
scanf("%d",&n);
for (i=1; i<=n;i++)
{
if (i%2==0)
{
sum+=i;
}
}
printf("%d",sum);
}
*/
/*#include<stdio.h>
int main()
{
int n,i,a,cnt=0;
scanf("%d",&n);
for (i=1; i<=n; i++)
{ scanf("%d",&a);
if (a%2==0)
{
cnt+=1;
}
}
printf("%d",cnt);
return 0;
}
*/
/*#include<stdio.h>
int main()
{
int a,b,c,n,i;
scanf("%d %d %d %d",&a,&b,&c,&n);
for (i=1; i<n; i++)
{
a=a*b+c;
}
printf("%d",a);
}
*/
/*#include<stdio.h>
int main()
{
int a,b;
scanf("%d %d",&a,&b);
if (a%2==0)
{
a=a*5;
}
else if (a%2==1)
{
a=(a+1)/2;
}
if(b%2==0)
{
b=b*5;
}
else if(b%2==1)
{
b=(b+1)/2;
}
printf("%d", a+b);
}
*/