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import java.util.Scanner;

public class kie {
    public static void main(String[] args) {
        int total = 0;
        Integer smallestOdd = null;
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();

        for (int i = 0; i < n; i++) {
            int bill = sc.nextInt();
            if (bill % 2 == 1) {
                if (smallestOdd == null || bill < smallestOdd) {
                    smallestOdd = bill;
                }
            }

            total += bill;
        }

        if (total % 2 == 1) {
            total -= smallestOdd;
        }

        if (total == 0) {
            System.out.println("NIESTETY");
        } else {
            System.out.println(total);
        }

        sc.close();
    }
}