#include <bits/stdc++.h>

using namespace std;

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

int n,nr,x,i,v[1000010];

int main()
{
    f>>n;
    for(i=1;i<=n;i++)f>>v[i];

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

    nr=0;
    for(i=1;i<=n;i++)if(v[i]==x)nr++;
    if(nr>=n/2+1)g<<x<<" "<<nr;
    else g<<-1;
    return 0;
}