import java.util.Scanner;

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


        int n = Integer.parseInt(scanner.nextLine());

        int max = Integer.MIN_VALUE;
        int sum = 0;

        for (int i = 1; i <= n; i++) {
            int num = Integer.parseInt(scanner.nextLine());
            if (num >= max) {
                max = num;
            }
            sum += num;


        }
        int diff = Math.abs(sum - max);
        if (sum / 2 == max) {
            System.out.printf("Yes%nSum = %d", diff);
        } else {
            System.out.printf("No%nDiff = %d", diff);
        }
    }
}