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#include <iostream>
using namespace std;

int main(){
  int n, sum=0, min_odd=99999,tmp;
  cin >> n;
  for(int i=0; i<n; i++){
    cin>>tmp;
    sum += tmp;
    if (tmp %2 ==1)
      min_odd=(tmp<min_odd)?tmp:min_odd;
  }
  if (sum %2 == 0){
    cout << sum << endl;
  }
  else
    if (sum - min_odd > 0)
      cout<<sum-min_odd<<endl;
    else
      cout<<"NIESTETY"<<endl;
  return 0;    
}