#include<stdio.h>
struct point{
    int x;
    int y;
};
int main(){
    int n;
    scanf("%d",&n);
    struct point points[100];
    for (int i=0;i<n;i++){
        scanf("%d %d",points[0].x,&points[i].y);
    }
    if(n>=3)
    printf("%d %d",points[0].x,points[2].y);
    else
    printf("Invalid input");
    return 0;
}