//#include <iostream>
#include <fstream>

using namespace std;

ifstream cin("elmaj.in");
ofstream cout("elmaj.out");

int main()
{
    int n,v[1000000],c,p=0,nr,i;
    cin>>n>>v[1];
    c=v[1];
    nr=1;
    for(i=2; i<=n; i++)
    {
        cin>>v[i];
        if(v[i]==c) nr++;
        else nr--;
        if(nr==0)
        {
            c=v[i];
            nr=1;
        }
    }
    for(i=1;i<=n;i++) if(v[i]==c) p++;
    if(p>=n/2+1) cout<<c<<" "<<p;
    else cout<<"-1";
    return 0;
}