OddEvenSum

import java.util.Scanner;

public class OddEvenSum {
    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        int a =input.nextInt();
        int sum = 0;
        int num = 0;
        for (int i = 0; i < a; i++) {
            int b = input.nextInt();

            if (i % 2 == 0) {
                sum += b;
            } else {
                num += b;
            }

        }if (sum == num) {
            System.out.println("Yes");
            System.out.println("sum = " + sum);
        } else {
            int result = Math.abs(sum - num);
            System.out.println("No");
            System.out.println("diff = " + result);
        }

    }
}