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import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class kie {
    public static void main(String[] args) throws IOException {
        BufferedReader input = new BufferedReader(new InputStreamReader(System.in));
        System.out.println(run(input));
    }

    public static String run(BufferedReader input) throws IOException {
        int n = Integer.parseInt(input.readLine());
        String[] values = input.readLine().split(" ");
        if (n == 1 && (Integer.parseInt(values[0]) & 1) == 1) {
            return "NIESTETY";
        }
        int sum = 0;
        int i;
        int minOdd = 1001;
        for (String s : values) {
            i = Integer.parseInt(s);
            sum += i;
            if ((i & 1) == 1) {
                if (i < minOdd) {
                    minOdd = i;
                }
            }
        }
        if ((sum & 1) == 1) {
            return Integer.toString(sum - minOdd);
        }
        return Integer.toString(sum);
    }
}