#include <fstream>

using namespace std;

ifstream cin("elmaj.in");
ofstream cout("elmaj.out");

int v[1000005];

int main()
{
    int n,i;
    cin>>n;
    for(i=1;i<=n;i++)
        cin>>v[i];
    int elem=v[1],cnt=1;
    for(i=2;i<=n;i++)
    {
        if(v[i]==elem)
            cnt++;
        else
            cnt--;
        if(cnt==0)
        {
            elem=v[i];
            cnt=1;
        }
    }
    cnt=0;
    for(i=1;i<=n;i++)
    {
        if(v[i]==elem)
            cnt++;
    }
    if(cnt>=n/2)
        cout<<elem<<" "<<cnt;
    else
        cout<<"-1";
    return 0;
}