백준 2420 java

import java.util.Scanner;

public class bj2420 {
    static Scanner scanner = new Scanner(System.in);
    static long A, B;

    public static void main(String[] args) {
        inputData();
        System.out.println(findAnswer());
        scanner.close();
    }

    public static void inputData() {
        A = scanner.nextLong();
        B = scanner.nextLong();
    }

    public static long findAnswer()
    {
        long answer;

        answer = A - B;
        return (answer >= 1) ? answer : -answer;
    }
}