#include <iostream>
#include <fstream>

using namespace std;
ifstream fin("elmaj.in");
ofstream fout("elmaj.out");

int n,v[1000002],i,j,nr,b[1000002],ok;

int main()
{
    fin>>n;
    ok=0;
    for(i=1;i<=n;i++)
    {
        fin>>v[i];
        b[v[i]]++;
    }
    for(i=1;i<=n;i++)
    {
        if(b[i]>=n/2+1)
        {
            fout<<i<<" "<<b[i];
            ok=1;
            break;
        }
    }
    if(ok==0) fout<<"-1";
    fin.close();
    fout.close();
    return 0;
}