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

int main() {
	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 << "IGEN\n";
		int average = sum / N;
		for(int i = 0; i < N; i++){
			if(a[i] > average){
				cout << a[i] - average << " ";
			}
			else{
				cout << 0 << " ";
			}
		}
	}
	else{
		cout << "NEM\n";
		cout << N - sum % N;
	} 

}