#include<cstdio>
#include<iostream>
using namespace std;
int n,a[1000100];
int count()
{
    int i,last=-1,ok=0;
    for(i=1;i<=n;i++)
    {
        last=(ok==0)?a[i]:last;
        ok=(ok==0)?0:ok;
        ok=(last==a[i])?(ok+1):(ok-1);
    }
    if(last<0) {printf("-1"); return 0;}
    for(i=1,ok=0;i<=n;i++) ok=(a[i]==last)?(ok+1):ok;
    if(ok>n/2) printf("%d %d\n",last,ok);
    else printf("-1");
    return 0;
}
int main()
{
    int i;
    freopen("elmaj.in","r",stdin);
    freopen("elmaj.out","w",stdout);
    cin>>n; //scanf("%d",&n);
    for(i=1;i<=n;i++)
    {
        cin>>a[i]; //scanf("%d",&a[i]);
    }
    return count();
}