/*
#include <stdio.h>
#include <stdlib.h>
int main()
{
printf("Hello world!\n");
return 0;
}
*/
/*
#include<stdio.h>
int main()
{
int k,i,j,x,y;
char map[50][50]= {"*x*", " xx", "* *"};
scanf("%d",&k);
for(i=0; i<3; i++)
{
for(x=0; x<k; x++)
{
for(j=0; j<3; j++)
{
for(y=0; y<k; y++)
{
printf("%c",map[i][j]);
}
}
printf("\n");
}
}
return 0;
}
*/
/*
#include<stdio.h>
#include<math.h>
int main()
{
double a,b,c;
int x,x1,y,y1;
scanf("%d %d",&x,&y);
scanf("%d %d",&x1,&y1);
a=(x-x1)*(x-x1); //9
b=(y-y1)*(y-y1); //16
c=sqrt(a+b);
printf("%.2lf",c);
}
*/
/*
#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);
printf("%d %% %d = %d",a,b,a%b);
return 0;
}
*/
/*
#include<stdio.h>
#include<math.h>
int main()
{
double a,b,c;
int x,x1,y,y1;
scanf("%d %d",&x,&y);
scanf("%d %d",&x1,&y1);
a=(x-x1)*(x-x1); //9
b=(y-y1)*(y-y1); //16
c=sqrt(a+b);
printf("%.2lf",c);
}
*/
#include<stdio.h>
#include<math.h>
int main()
{
int n,a[300]={0},b[300]={0},i,x,y;
scanf("%d",&n);
for(i=0;i<n;i++)
{
scanf("%d %d",&x,&y);
a[i]=x;
b[i]=y;
}
}