Equal pairs

import java.util.Scanner;

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

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

        int sum = 0;
        int maxDifference = 0;
        int diff = 0;

        for (int i = 0; i < n; i++) {
          int num1 = Integer.parseInt(scanner.nextLine());
          int num2 = Integer.parseInt(scanner.nextLine());

          int currentSum = num1 + num2;

            if (i == 0) {
               sum = currentSum;
            } else {
                diff = Math.abs(sum - currentSum);
                sum = currentSum;
            }
            if (diff > maxDifference) {
                maxDifference = diff;
            }
        }

        if (maxDifference == 0) {
            System.out.printf("Yes, value=%d", sum);
        } else {
            System.out.printf("No, maxdiff=%d", maxDifference);
        }
    }
}