#include<iostream>
#include<fstream>
using namespace std;
ifstream fin("elmaj.in");
ofstream fout("elmaj.out");

int main(){
    long n, v[1000001],x,k,i;
    fin>>n;

    for(i=1;i<=n;i++)
        fin>>v[i];
    x=v[1];k=1;

    for(i=2;i<=n;i++){
        if(x==v[i])k++;
        else if(k>0)k--;
        else{
            x=v[i];
            k=1;
        }
    }
    k=0;
    for(i=1;i<=n;i++)
        if(x==v[i])k++;

    if(k>n/2)fout<<x<<" "<<k;
    else fout<<"-1";
    fin.close();
    fout.close();
    return 0;
}