#include <bits/stdc++.h>
using namespace std;

int main() {
    int n;
    cin >> n;
    int legs = 0;
    for (int i = 0; i < n; i++) {
        int a;
        cin >> a;
        legs += a;
    }
    for (int t = 0; t <= n; t++) {
        if (legs + t * 2 + (n - t) * 4 == n * (t * 2 + (n - t) * 4)) {
            cout << t << ' ' << n - t << endl;
        }
    }
    return 0;
}