#include <bits/stdc++.h>
#define prim 123457
using namespace std;
ifstream fin("elmaj.in");
ofstream fout("elmaj.out");
int a[1000005],n;
int main()
{
    int i,sol=0,maj;
    fin>>n;
    for(i=1;i<=n;i++)
        fin>>a[i];
    nth_element(a+1,a+n/2+1,a+n+1);
    maj=a[n/2+1];
    for(i=1;i<=n;i++)
        if(maj==a[i])sol++;
    if(sol>n/2)
        fout<<maj<<" "<<sol<<"\n";
    else fout<<"-1\n";
    fin.close();
    fout.close();
    return 0;
}