#include <iostream>
#include <fstream>
using namespace std;
int v[1000005],c=-1,k=0,n,i,p;
int main()
{
    ifstream f("elmaj.in");
    ofstream g("elmaj.out");
    f>>n;
    for (i=1;i<=n;i++)
    {
        f>>v[i];
        if (k==0) {c=v[i];k=1;}
        if (k!=0 && c==v[i])
            k++;
        if (k!=0 && c!=v[i])
            k--;
    }
    for (i=1;i<=n;i++)
    {
        if (v[i]==c) p++;
    }
    if (p>=n/2+1) g<<c<<" "<<p;
    else g<<-1;
    return 0;
}