#include <iostream>
#include <malloc.h>
#include <algorithm>

using namespace std;

int main()
{
    int n, m, *a, *b, sum=0, sum2=0;

    cin >> n;
    cin >> m;

    a = (int*)malloc(n * sizeof(int));
    b = (int*)malloc(n * sizeof(int));

    for(int i = 0; i < n; i++)
        cin>>a[i]>>b[i];

    sort(a, a + n);
    sort(b, b + n);

    sum = a[n - 1] + a[n - 2];
    sum2 = b[n - 1] + b[n - 2];

    cout<<sum<<" "<<sum2;
    free(a);
    free(b);
    return 0;
}