#include <iostream>
#include <fstream>
using namespace std;

int main()
{
    ifstream in("elmaj.in");
    ofstream out("elmaj.out");
    long long n,v[1000001],x,i,k;
    in>>n;
    for(i=1; i<=n; i++)
        in>>v[i];
    x=v[1];
    k=1;
    for(i=2; i<=n; i++)
        if(x==v[i])
            k++;
        else
            if(k>0)
                k--;
        else
        {
                x=v[i];
                k=1;
        }
        k=0;
    for(i=1; i<=n; i++)
        if(x==v[i])
            k++;
        if(k>n/2)
            out<<x<<" "<<k;
        else
        out<<"-1";
    in.close();
    out.close();
    return 0;
}