#include <iostream>
    #include <fstream>
    #include <algorithm>
    using namespace std;
    int v[1000000];

    int main()
    {

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

    int n,i,fr=0,c=0,k=0;
    f>>n;
    for(i=1;i<=n;i++) f>>v[i];
    for(i=1;i<=n;i++)
    {
        if(fr==0)
        {
            fr=1;
            c=v[i];
        }
        else if(c==v[i]) fr++;
                else fr--;
    }

    for(i=1;i<=n;i++)
    {
        if(v[i]==c) k++;
    }
    if(k>n/2)g<<c<<" "<<k;
    else g<<"-1";

    f.close();
    g.close();
    return 0;
}