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import java.io.OutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.StringTokenizer;
import java.io.IOException;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.InputStream;

/**
 * Built using CHelper plug-in
 * Actual solution is at the top
 */
public class kie {
    public static void main(String[] args) {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        InputReader in = new InputReader(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        Kieszonkowe solver = new Kieszonkowe();
        solver.solve(1, in, out);
        out.close();
    }

    static class Kieszonkowe {
        public void solve(int testNumber, InputReader in, PrintWriter out) {
            int MAX = 1001;
            int N = in.nextInt();
            int min_odd = MAX;
            int sum = 0;
            for (int i = 0; i < N; i++) {
                int a = in.nextInt();
                sum += a;
                if (a % 2 != 0) {
                    min_odd = Math.min(min_odd, a);
                }
            }
            if (sum % 2 == 0) {
                out.println(sum);
            } else if (N > 1 && min_odd != MAX) {
                out.println(sum - min_odd);
            } else {
                out.println("NIESTETY");
            }
        }

    }

    static class InputReader {
        public BufferedReader reader;
        public StringTokenizer tokenizer;

        public InputReader(InputStream stream) {
            reader = new BufferedReader(new InputStreamReader(stream), 32768);
            tokenizer = null;
        }

        public String next() {
            while (tokenizer == null || !tokenizer.hasMoreTokens()) {
                try {
                    tokenizer = new StringTokenizer(reader.readLine());
                } catch (IOException e) {
                    throw new RuntimeException(e);
                }
            }
            return tokenizer.nextToken();
        }

        public int nextInt() {
            return Integer.parseInt(next());
        }

    }
}