#include <iostream>
#include <fstream>
using namespace std;
ifstream f("elmaj.in");
ofstream g("elmaj.out");
int a[1000001],n,i,k,aux;
int main()
{
    f>>n;
    for(i=1;i<=n;i++)
    {
        f>>a[i];
        if(k==0)
        {
            aux=a[i];
            k=1;
        }
        else if(a[i]==aux) k++;
        else k--;
    }
    k=0;
    for(i=1;i<=n;i++)
        if(a[i]==aux) k++;
    if(k>n/2) g<<aux<<" "<<k;
    else g<<-1;
    return 0;
}