#include<stdio.h>
struct piont{
    int x,y;
};
int main(){
    int N;
    scanf("%d",&N);
    if(N<0){
        printf("Invalid input");
        return 0;
    }
    struct point arr[n];
    struct point *p=arr;
    for(int i=0;i<N;i++){
        scanf("%d %d",&(p+i)->x,&(p+i)->y);
    }
}
}