Codechef - Number Mirror

Problem
Write a program that takes a number N as the input, and prints it to the output.
Input Format
The only line contains a single integer.
Output Format
Output the answer in a single line.
Constraints
- 0 <= N <= 105

Solution :
/* 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 a;
Scanner sc = new Scanner(System.in);
a = sc.nextInt();
System.out.println(a);
}
}