Game Number wars

import java.util.Scanner;

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

        String namePlayerOne = scanner.nextLine();
        String namePlayerTwo = scanner.nextLine();
        int points1 = 0;
        int points2 = 0;
        boolean isNumberWars = false;

        String input = scanner.nextLine();
        while (!input.equals("End of game")) {
            int card1 = Integer.parseInt(input);
            int card2 = Integer.parseInt(scanner.nextLine());


            if (card1 > card2) {
                points1 = points1 + (card1 - card2);
            } else if (card2 > card1) {
                points2 = points2 + (card2 - card1);
            } else {
                System.out.println("Number wars!");
                isNumberWars = true;
                while (true) {
                    card1 = Integer.parseInt(scanner.nextLine());
                    card2 = Integer.parseInt(scanner.nextLine());
                    if (card1 > card2) {
                        System.out.printf("%s is winner with %d points", namePlayerOne, points1);
                        break;
                    } else if (card2 > card1) {
                        System.out.printf("%s is the winner with %d points", namePlayerTwo, points2);
                        break;
                    }
                }
            }
            if (isNumberWars) {
                break;
            }
            input = scanner.nextLine();
        }
        if (input.equals("End of game")) {

            System.out.printf("%s has %d points%n", namePlayerOne, points1);
            System.out.printf("%s has %d points", namePlayerTwo, points2);
        }

    }
}