Problem:
Reverse Sequence

Write a program which reverses a given string str.

Input

str (the size of str ≤ 20) is given in a line.

Output

Print the reversed str in a line.

Sample Input

w32nimda

Output for the Sample Input

admin23w

Solution in JAVA (judge verdict: Wrong Answer)

import java.io.*;
class Main
{
   public static void main(String args[]) throws IOException
   {
   System.out.println("文字列を入力");
   BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
    String str1 = br.readLine();
    StringBuffer str2 = new StringBuffer(str1);
    str2.reverse();
    System.out.println(str1 + "を逆順にすると" + str2 + "となる.");
   }
}