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;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ConsoleApp9
{
    class Program
    {
        public static void Main(string[] args)

        {
            {
                string a = Console.ReadLine(); int b = a.Length;
                for (; b > 0; b--)
                { Console.Write(a[b-1]); }
                Console.WriteLine();
            }
        }
    }
}