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#include <iostream>
using namespace std;

int main() {
  ios::sync_with_stdio(false);
  int const maxValue = 1000;
  int n, smallestOdd = maxValue;
  cin >> n;
  int sum = 0;
  while (n--) {
    int value;
    cin >> value;
    sum += value;
    if (value & 1)
      smallestOdd = min(smallestOdd, value);
  }
  if (sum & 1) 
    sum -= smallestOdd;
  if (sum > 0)
    cout << sum << endl;
  else
    cout << "NIESTETY\n";
  return 0;
}