Problem:
Score : 100 points

Problem Statement

You are given a string S of length 2 or 3 consisting of lowercase English letters. If the length of the string is 2, print it as is; if the length is 3, print the string after reversing it.

Constraints

The length of S is 2 or 3.

S consists of lowercase English letters.

Input

Input is given from Standard Input in the following format:

S

Output

If the length of S is 2, print S as is; if the length is 3, print S after reversing it.

Sample Input 1

abc

Sample Output 1

cba

As the length of S is 3, we print it after reversing it.

Sample Input 2

ac

Sample Output 2

ac

As the length of S is 2, we print it as is.

Solution in Java8 (OpenJDK 1.8.0) (judge verdict: Runtime Error)

import java.util.Scanner;

public class Main{
    public static void main(String args[]){
	String S;
	Scanner sc = new Scanner(System.in);

	System.err.print("S = ");
	S = sc.next();
	
	if( S.length() == 2){
	    System.out.print(S);
	}

	else if( S.length() == 3){
	    S.charAt(1);
	    S.charAt(2);
	    S.charAt(3);
	    System.out.print(S.charAt(1) + S.charAt(2) + S.charAt(3));
	}
	else{
	    System.out.print("Error!");
	}
    }
}