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import java.util.ArrayList;
import java.util.Comparator;
import java.util.List;
import java.util.Scanner;
/*
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 */
public class kie {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int moneyCount = Integer.parseInt(scanner.next());
        int sum = 0;
        List<Integer> moneyList = new ArrayList<Integer>(moneyCount);

        for (int i = 0; i < moneyCount; i++){
            int note = Integer.parseInt(scanner.next());
            sum += note;
            moneyList.add(note);
        }
        moneyList.sort(Comparator.<Integer>naturalOrder());

        if (sum % 2 == 0) {
            System.out.println(sum);
            return;
        } else{
            for (Integer integer : moneyList) {
                if (integer % 2 != 0 && sum - integer != 0 && (sum - integer) % 2 == 0){
                    System.out.println(sum - integer);
                    return;
                }
            }
        }

        System.out.println("NIESTETY");

    }


}