why is it showing no element exception for line 13?
package com.codegym.task.task04.task0412;
/*
Positive and negative numbers
*/
import java.util.*;
import java.io.*;
public class Solution {
public static void main(String[] args) {
Scanner s=new Scanner(System.in);
int n=s.nextInt();
// int n=Integer.parseInt(a);
if(n>0)
{
n=n*2;
System.out.println(n);
}
else if (n<0)
{
n+=1;
System.out.println(n);
}
else System.out.println("0");
//write you
}
}