OddEvenSum

import java.util.Scanner;

public class OddEvenSum {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        Integer n = Integer.parseInt(scanner.nextLine());

        Integer evenSum = 0;
        Integer oddSum = 0;

        for(int i = 0; i < n; i++){
            Integer number = scanner.nextInt();
            if(i%2==0){
                evenSum = evenSum+number;
            }else {
                oddSum = oddSum+number;
            }
        }
        Integer diffSum = Math.abs(evenSum-oddSum);

        if(diffSum == 0){
            System.out.printf("Yes\n");
            System.out.printf("Sum = %d", evenSum);
        }else {
            System.out.println("No");
            System.out.printf("Diff = %d", diffSum);
        }
    }
}