/*#include <stdio.h>
int mymin(int a, int b)
{
if(a<b) return a;
else return b;
}
int main()
{
int a, b;
scanf("%d %d", &a, &b);
printf("%d", mymin(a, b));
}
*/
/*#include<stdio.h>
int myabs(int a)
{
if(a<0) return a*-1;
else return a;
}
int main()
{
int a;
scanf("%d", &a);
printf("%d", myabs(a));
}
*/
/*#include<stdio.h>
float circle(int r)
{
return 3.14*r*r;
}
int mein()
{
int r;
scanf("%d", &r);
printf("%.2f", circle(r));
}*/
/*#include<stdio.h>
int main()
{
int n,a[1010],i;
scanf("%d", &n);
for(i=0; i<n; i++)
{
scanf("%d", a[i]);
}
for(i=0; i<)
}*/