Method-07

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

namespace _07.ReverseDecimalNumber
{
    class Program
    {
        /*Write a method that reverses the digits of
         * given decimal number. Example: 256  652.*/

        static StringBuilder ReversedNumber(string number)
        {
            char[] ReversedNumber = number.ToCharArray();
            Array.Reverse(ReversedNumber);
            StringBuilder newNumber = new StringBuilder();
            newNumber.Append(ReversedNumber);
            return newNumber;
        }

        static void Main()
        {
            string number = Console.ReadLine();
            string result = Convert.ToString(ReversedNumber(number));
            Console.Write("{0} -> ", number);
            if (result[0] == '0')
            {
                Console.WriteLine(result.Substring(1, result.Length - 1));
            }
            else
            {
                Console.WriteLine(result);
            }
        }
    }
}