#include <fstream>
#include <cstdlib>
using namespace std;

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

long long int n,i,nr,j,k,k1,v[100000000];

int main()
{
    cin>>n;
    for(i=1;i<=n;i++)
    cin>>v[i];

    for(i=1;i<=n;i++)
    {
        nr=0;
        for(j=1;j<=n;j++)
        {
            if(v[i]==v[j])
            nr++;
        }
        if(nr>n/2)
        {cout<<v[i]<<' '<<nr;
        exit(0);
        }
    }
    if(nr<n/2 || nr==n/2)
        cout<<-1;
    return 0;
}