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

int main() {

    ios_base::sync_with_stdio(false);
    cin.tie(0);
    
    int n; cin >> n;
    vector<int> a(n);
    int sum = 0;
    for (int i = 0; i < n; i++) {
        cin >> a[i];
        sum += a[i];
    }

    if (sum % n != 0) {
        cout << "NEM\n" << (sum - sum%n + n) - sum;
        return 0;
    }

    cout << "IGEN\n";
    int avg = sum / n;
    for (int& e : a) {
        cout << max(0, e-avg) << " ";
    }

	
    return 0;
}