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 ConsoleApp19
{
    class Program
    {
        static void Main(string[] args)
        {
            string moji = Console.ReadLine();
            int a = moji.Length;
            string[] ijmo = new string[a];
            for (int i = 0; i < a; i += 1)
            {
                char c = moji[a-i-1];
                ijmo[i] = c.ToString();
            }
            if (a == 0)
            {
                Console.WriteLine();
                Console.ReadLine();
            }
            else
            {
                string ans = ijmo[0];
                for (int i = 1; i < a; i += 1)
                {
                    ans = ans + ijmo[i];
                }

                Console.WriteLine(ans);
                Console.ReadLine();
            }
        }
    }
}