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#include <bits/stdc++.h>

using namespace std;

int main() {
  int n;
  vector<int> a;

  for(scanf("%d", &n); n; --n) {
    a.emplace_back();
    scanf("%d", &a.back());
  }

  if(a.size() == 1 && a.front() % 2 == 1)
    puts("NIESTETY");
  else {
    int s = accumulate(a.begin(), a.end(), 0);
    if(s % 2 == 1) {
      int minodd = INT_MAX;
      for(int ai : a)
        if(ai % 2 == 1)
          minodd = min(minodd, ai);
      s -= minodd;
    }
    printf("%d\n", s);
  }

  return 0;
}