Help me in solving CCLEARN problem

help
,
1

My issue

show me the program

My code

/* 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 n = sc.nextInt();
	     int courses = 2;
	     int lang = 4;
	     System.out.println(4*2);
	     
	     
	     
	     
	     
	}
}

Learning course: Practice Java
Problem Link: CodeChef: Practical coding for everyone

2

@satish_8777
U have to do it like this.

/* 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
	{
		int n;
		Scanner s=new Scanner(System.in);
		n=s.nextInt();
		
		System.out.println(n*2);
	}
}