using System;

using System.Collections.Generic;

​

namespace shiftCipherCalculator

{

    class Program

    {

        static void Main(string[] args)

        {

            // napishi shifrirashtiq mnojitel (k) pod tozi red

            var cipherMultiplier = 5;

            //napishi otmestwaneto (s) pod tozi red

            var displacement = 2;

            //napishi suobshtenieto ako ima takowa pod tozi red 

            var message = "delete this and enter new message here DO NOT TOUCH ANYTHING ELSE".Replace(" ", "");

            var lettersWithNewValue = new Dictionary<char, char>();

            var resultString = "";

​

            Console.WriteLine("New values are as follows: ");

            for (int x = 0; x < 26; x++)

            {

                var result = (cipherMultiplier * x + displacement) % 26;

                var newChar = (char)(result + 65);

                lettersWithNewValue.Add((char)(x + 65), newChar);

                Console.Write($"{result} ");

                resultString += $"{newChar} ";

            }

            Console.WriteLine();

            Console.WriteLine($"New letters are as follows:\n{resultString}");

​

            var newMessage = "";

            foreach (var character in message)

            {

                foreach (var kvp in lettersWithNewValue)

                {

                    if (character == kvp.Value)

                    {

                        newMessage += kvp.Key;

                    }

                }

            }

​

            Console.WriteLine($"New Message is:\n{newMessage}");

        }

    }

}

​