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/*PA2015 etap1 Kieszonkowe*/
#include <iostream>
using namespace std;

int main() {
  ios_base::sync_with_stdio(0);
  int n, a, aMinNieparzyste = 1000, suma = 0;
  cin >> n;
  for(int i = 0; i < n; ++i) {
    cin >> a;
    suma += a;
    if(a % 2 && a < aMinNieparzyste)
      aMinNieparzyste = a;
  }
  if(suma % 2)
    suma -= aMinNieparzyste;
  if(suma)
    cout << suma << endl;
  else
    cout << "NIESTETY" << endl;
  return 0;
}