sum or difference

Problem:--Write a program to take two numbers as input and print their difference if the first number is greater than the second number otherwise print their sum.
/* package codechef; // don't place package name! */

import java.util.*;
import java.lang.*;
import java.io.*;

/* Name of the class has to be "Main" only if the class is public. */
class Codechef
{
	public static void main (String[] args) throws java.lang.Exception
	{
		Scanner sc=new Scanner(System.in);
		int a=sc.nextInt();
		int b=sc.nextInt();
		if(a>b){
		    System.out.println(a-b);
		}else{
		    System.out.println(a+b);
		    }// your code goes here
	}
}