#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[i].x, points[i].y);
        
    }
    if(n >=3)
    printf("%d %d", points[0].x, points[2].y);
    else
    printf("Invalid input");
    return 0;
}