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 C# (judge verdict: Accepted)

using System;
class Program
    {
        static void Main(string[] args)
        {
            string str=Console.ReadLine();
            string ans="";
            int L = str.Length;
            for (int i = 0; i < L; i++) {
                ans += str.Substring(L - 1 - i, 1);
            }
            Console.WriteLine(ans);

            Console.ReadLine();
        }
    }