#include <fstream>

using namespace std;
ifstream fin("elmaj.in");
ofstream fout("elmaj.out");
int v[10000005],cand,k,n,i;
int main()
{
    fin>>n;
    fin>>v[1];
    cand=v[1];
    k=1;
    for(i=2;i<=n;i++)
    {
        fin>>v[i];
        if(cand==v[i])
        {
            k++;
        }
        else k--;
        if(k==0)
        {
            cand=v[i];
            k=1;
        }
    }
    for(i=1;i<=n;i++)
    {
        if(cand==v[i])k++;
    }
    if(k-->=n/2+1)
    {
        fout<<cand<<" "<<k--;
    }
    else fout<<"-1";
    fout.close();
    return 0;
}