#include <iostream>
#include <vector>

using namespace std;

int main()
{
    int n,ossz=0, atlag;
    bool z;
    cin >> n;
    vector<int> gy(n);
    for(int i=0; i<n; i++){
        cin >> gy[i];
        ossz+= gy[i];
    }
    if(ossz % n !=0){
        cout << "NEM \n" << ossz % n;
        z= 0;
    }else{
    cout << "IGEN\n";
    z =1;
    }
    if(z){
        atlag = ossz / n;
        for(int i=0; i<n; i++){
            if(gy[i]>atlag){
                cout << gy[i]-atlag << " ";
            }else{
            cout << 0 << " ";}
        }
    }
    return 0;
}