#include <fstream>

using namespace std;

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

int v[1000000];

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