#include <iostream>

using namespace std;

int main()
{
    int n, A[100000];
    long long a = 0;
    cin >> n;
    for(int i = 0; i < n; i++)
    {
        cin >> A[i];
        a+=A[i];
    }
    if(a%n != 0)
    {
        cout << "NEM" << endl;
        cout << n - a % n;
    }
    else
    {
        cout << "IGEN" << endl;
        int l = a/n;
        for(int i = 0; i < n; i++)
        {
            if(A[i] > l)
            {
                cout << A[i] - l << " ";
            }
            else
            {
                cout << 0 << " ";
            }
        }
    }
    return 0;
}