#include <cstdio>
#include <unordered_map>

using namespace std;

unordered_map <int, int> fr;

int main()
{
    freopen("elmaj.in", "r", stdin);
    freopen("elmaj.out", "w", stdout);

    int n;
    scanf("%d", &n);

    for(int i = 1; i <= n; ++i){
        int x;
        scanf("%d", &x);

        if(fr.find(x) == fr.end())
            fr[x] = 1;
        else fr[x]++;
    }

    for(auto it : fr){
        if(it.second > n / 2){
            printf("%d %d\n", it.first, it.second);
            return 0;
        }
    }
    printf("%d\n", -1);
    return 0;
}