#include <fstream>
using namespace std;
ifstream fin("elmaj.in");
ofstream fout("elmaj.out");
int v[1000100],a[99999999],maxa,p,i,n,s;
int main()
{
    fin>>n;
    for(i=1;i<=n;i++)
        fin>>v[i];
    for(i=1;i<=n;i++)
    {
        a[v[i]]++;
        if(a[v[i]]>maxa)
        {
            maxa=a[v[i]];
            p=v[i];
        }
    }
    s=n/2+1;
    if(maxa>=s)
    {
        fout<<p<<" "<<maxa;
    }
    else
        fout<<"-1";

    return 0;
}