Reverse the Character in the Given sentence and remove the space.

class Program 

    {

        static void Main(string[] args) 

        {

            string str = "", reverse = ""; 

            str = "honesty is the best policy"; 

            int num = str.Length - 1; 

             while (num >= 0) 

            {

                if (str[num] != ' ') 

                {

                    reverse = reverse + str[num]; 

                }

                num--; 

            }

            Console.WriteLine(reverse); 

            Console.ReadLine(); 

        } 

    }