#include <iostream>
#include <vector>
#include <numeric>
#include <cmath>
 
int main() {
    int n;
    std::cin >> n;
 
    std::vector<int> raii(n);
    for (int i = 0; i < n; ++i) {
        std::cin >> raii[i];
    }
 
    // Calculăm suma totală și media
    int suma = std::accumulate(raii.begin(), raii.end(), 0);
    int medie = suma / n; // Rația țintă
 
    int drumuri = 0;
    bool toateEgale = true;
 
    for (int raie : raii) {
        if (raie != medie) {
            toateEgale = false;
            drumuri += std::abs(raie - medie); // adăugăm diferența
        }
    }
 
    // Fiecare unitate de diferență necesită 1 drum dus și 1 întors
    drumuri /= 2;
 
    // Afișăm numărul de drumuri
    std::cout << drumuri << std::endl;
 
    // Verificăm dacă toate raiile erau egale
    if (toateEgale) {
        std::cout << "Wunorse, you lucky elf!" << std::endl;
    }
 
    return 0;
}

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