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import java.util.Scanner;

public class kie {

  public static void main(String[] args) {
    Scanner in = new Scanner(System.in);

    int n = in.nextInt();

    int sum = 0;

    int lowestOdd = Integer.MAX_VALUE;

    for (int i = 0; i < n; ++i) {
      int bajtalars = in.nextInt();

      sum += bajtalars;
      if (bajtalars % 2 != 0 && bajtalars < lowestOdd) {
        lowestOdd = bajtalars;
      }
    }

    String out = "";
    if (sum % 2 != 0) {
      sum -= lowestOdd;
    }
    if (sum != 0) {
      out = Integer.toString(sum);
    } else {
      out = "NIESTETY";
    }
    System.out.println(out);
  }
}