#include <fstream>
#define N 1000005
using namespace std;

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

int n;

int main()
{
    int i,x,ct=0,el=-1,a[N];
    fin>>n;
    for(i=1; i<=n; ++i)
    {
        fin>>a[i];
        if(a[i]!=el)
        {
            if(ct>=1) ct--;
            else el=a[i],ct=1;
        }
        else ct++;
    }
    ct=0;
    for(i=1; i<=n; ++i)
        if(a[i]==el) ct++;
    if(ct>=n/2+1) fout<<el<<" "<<ct;
    else fout<<"-1";
    return 0;
}