#include<bits/stdc++.h>
#define int long long
using namespace std;

ifstream f("elmaj.in");
ofstream g("elmaj.out");

int v[1000005];

signed main()
{
    int n,i,k=0,candidat,nr=0;
    f>>n;
    for(i=1;i<=n;i++)
        f>>v[i];
    for(i=1;i<=n;i++)
    {
        if(k==0)
        {
            k=1;
            candidat=v[i];
        }
        else
        if(v[i]==candidat)
        {
            k++;
        }
        else
            k--;
    }
    if(k!=0)
    {
        for(i=1;i<=n;i++)
        {
            if(v[i]==candidat)
                nr++;
        }
        if(nr>=n/2+1)
            g<<candidat<<" "<<nr;
        else
            g<<-1;
    }
    return 0;
}