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import java.util.Scanner;


public class kie {

	public static void main(String[] args) {
		Scanner s = new Scanner(System.in);
		String line = s.nextLine();
		int n = Integer.parseInt(line);
		int suma = 0;
		int minNP = 1024;
		
		line = s.nextLine();
		String[] arg = line.split(" ");
		for (int i = 0; i < n; i++){
			int k = Integer.parseInt(arg[i]);
			suma += k;
			if (k % 2 == 1 && k < minNP){
				minNP = k;
			}
		}
		if (suma % 2 == 0){
			System.out.println(suma);
		}
		else {
			if ((suma - minNP) % 2 == 0){
				if (n > 1) System.out.println(suma - minNP);
				else System.out.println("NIESTETY");
			}
			else System.out.println("NIESTETY");
			
		}
		System.exit(0);

	}

}