백준 2420 Java 자바

 

 

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.StringTokenizer;
 
public class Q2420 {
 
    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        StringTokenizer st = new StringTokenizer(br.readLine());
        long n = Integer.parseInt(st.nextToken());
        long m = Integer.parseInt(st.nextToken());
        
        System.out.println(Math.abs(n-m));
 
    }
 
}