#include <bits/stdc++.h>

using namespace std;
int n,x;
map<int,int>mp;
map<int,int>::iterator it;
int main()
{
    freopen("elmaj.in","r",stdin);
    freopen("elmaj.out","w",stdout);
    scanf("%d",&n);
    for(int i=1;i<=n;i++)
    {
        scanf("%d",&x);
        mp[x]++;
    }
    for(it=mp.begin();it!=mp.end();it++)
        if(it->second>=n/2+1)
        break;
    if(it==mp.end())
        printf("-1");
    else
        printf("%d %d",it->first,it->second);
    return 0;
}