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import java.util.Scanner;

public class kie {

    public static void main(String[] args) {

        Scanner scanner = new Scanner(System.in);

        scanner.nextLine();

        String notes[] = scanner.nextLine().split(" ");

        int sum = 0;
        int minOdd = 1001;
        boolean evenCountOfOdds = true;

        for (String snote :notes) {
            int note = Integer.parseInt(snote);
            sum += note;
            if (note % 2 != 0) {
                evenCountOfOdds = !evenCountOfOdds;
                if (note < minOdd) {
                    minOdd = note;
                }
            }
        }

        int maxAllowance = evenCountOfOdds ? sum : sum - minOdd;

        System.out.println((maxAllowance == 0) ? "NIESTETY" : maxAllowance);
    }
}