#include <bits/stdc++.h>
#define N 1000005
using namespace std;
ifstream fin("elmaj.in");
ofstream fout("elmaj.out");
int a[N], n;

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