OddEven

import java.util.Scanner;

public class OddEvenSum {
    public static void main(String[] args) {
        Scanner scn = new Scanner(System.in);
        int count = Integer.parseInt(scn.nextLine());
        int sumEven = 0;
        int sumOdd = 0;

        for (int i = 1; i <= count; i++) {
            int number = Integer.parseInt(scn.nextLine());

            if (i % 2 == 0) {
                sumEven += number;
            } else {
                sumOdd += number;
            }
        }

        if (sumEven == sumOdd) {
            System.out.println("Yes");
            System.out.println("Sum = " + sumEven);
        } else {
            System.out.println("No");
            System.out.println("Diff = " + Math.abs(sumEven - sumOdd));
        }
    }
}