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import java.util.Scanner;

public class kie {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		
		int n = sc.nextInt();
		int a = 0, sum = 0, minOdd = 999;
		
		for(int i = 0; i < n; i++){
			a = sc.nextInt();
			if(( (a % 2) != 0) && a < minOdd){
				minOdd = a;
			}
			sum += a;
		}
		
		if( (sum % 2) != 0){
			sum -= minOdd;
		}
		if(sum > 0){
			System.out.println(sum);
		} else {
			System.out.println("NIESTETY");
		}
	}

}