#include <bits/stdc++.h>
using namespace std;

ifstream f("elmaj.in");
ofstream g("elmaj.out");

int v[1000001], n, cnt, i, elem;
int main()
{
    f >> n;
    for(i = 0; i < n; ++ i)
    {
        f >> v[i];
        if(cnt == 0)
        {
            cnt = 1;
            elem = v[i];
        }
        else if(v[i] == elem) cnt ++;
        else cnt --;
    }
    for(i = 0, cnt = 0; i < n; ++ i)
        if(v[i] == elem)
            cnt ++;
    if(cnt >= n / 2 + 1)
        g << elem << " " << cnt << "\n";
    else g << "-1";
    return 0;
}