#include<fstream>
#define numaru 1000001
using namespace std;
ifstream f("elmaj.in");
ofstream g("elmaj.out");
int v[numaru];
int main()
{
    int j,i,n,nr;
    f>>n;
    for(i=1;i<=n;++i) f>>v[i];
    for(i=1;i<n;++i)
    {
        nr=1;
        for(j=i+1;j<=n;++j)
            if(v[i]==v[j])++nr;
        if(nr>n/2)
        {
            g<<v[i]<<" "<<nr<<"\n";
            break;
        }
    }
    if(nr<n/2)g<<"-1\n";
    f.close();
    g.close();
    return 0;
}