EqualPairs_08

import java.util.Scanner;

public class EqualPairs_08 {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        // създаваме си променливите нужни за кода

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

        int sumA = 0;   // sumA = numbA + numbB
        int sumB = 0;   // sumB = numbA + numbB
        int diff = 0;   // diff = numA + numbB

        boolean test = true;

        for (int i = 1; i <= loopNum ; i++) {
            int numberA = Integer.parseInt(scanner.nextLine());
            int numberB = Integer.parseInt(scanner.nextLine());
            if (i % 3 == 1) {
                sumA = numberA + numberB;
            } else {
                sumB = numberA + numberB;
            }
            if (sumA == sumB || loopNum < 2) {
                test = true;
            } else {
                diff = Math.abs(sumB - sumA);
                test = false;
            }
        }
        if (test){
            System.out.printf("Yes, value=%d",sumA);
        }else {
            System.out.printf("No, maxdiff=%d",diff);
        }




    }
}