백준 10093번 숫자 [ Java ]

10093번: 숫자

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        long a = sc.nextLong();
        long b = sc.nextLong();
        if(b>a) {
            System.out.println(b-a-1);
            for(long i = a+1; i<b; i++) System.out.print(i+" ");
        }
        else if(a>b) {
            System.out.println(a-b-1);
            for(long i = b+1; i<a; i++) System.out.print(i+" ");
        }
        else System.out.print(0);
    }
}