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

int main() {
	int n;
	cin >> n;
	vector<int> v(n);
	int sum = 0;
	for (int i = 0; i < n; ++i) {
		cin >> v[i];
		sum += v[i];
	}
	int avg = ceil(sum / double(n));
	if (sum % n == 0) {
		cout << "IGEN" << endl;
		for (int i = 0; i < n; ++i) {
			cout << max(0, v[i] - avg) << " ";
		}
		cout << endl;
	} else {
		cout << "NEM" << endl;
		cout << avg * n - sum << endl;
	}
}