using System;

namespace BaseConverter

{

   class Program

   {

       public static void Main()

       {

       }

       public static void User()

       {

        Console.WriteLine("The Bases Coverter Machine");

        string Options = @"

                          press 1: To Convert form base 10 to the other Base

                          press 2: To Convert from other Base To Base 10;

                          press 3 : To convert from one base to the other base";

        int option = int.Parse(Console.ReadLine());

            if(option == 1)

            {

               Console.WriteLine("input decimal number");

               int decimalNum = int.Parse(Console.ReadLine());

               Console.WriteLine("converted to base?");

               int baseNum = int.Parse(Console.ReadLine());

               DecimalToBase(decimalNum, baseNum);

            }

            else if(option == 2)

            {

               Console.WriteLine("input  number");

               string inputNum = Console.ReadLine();

               Console.WriteLine("number is in base?");

               int theBase = int.Parse(Console.ReadLine());

               BaseToDecimal(inputNum, theBase);

            }

            else if(option == 3)

            {

               Console.WriteLine("input number to be converted");

               string number = Console.ReadLine();

               Console.WriteLine("number is in base?");

               int theNumberBase = int.Parse(Console.ReadLine());

               Console.WriteLine("To waht base?");

               int theNewBase = int.Parse(Console.ReadLine());

              BaseToBase(number, theNumberBase, theNewBase);

            }

       }

​

       public static string BaseToBase(string Number, int TheNumbersBase, int TheNewBase)

       {

           int decimalNumber = BaseToDecimal(Number, TheNumbersBase);

           return DecimalToBase(decimalNumber, TheNewBase);

​

​

       }

​

       public static string DecimalToBase(int decimalInput, int baseNumber)

       {

           string hexMap = "0123456789ABCDEF";

           string result = "";

           if (decimalInput > 0)

           {

               int newNumber = decimalInput % baseNumber;

               decimalInput = decimalInput / baseNumber;

               char newNumberString = hexMap[newNumber];

               result = newNumberString + result;

           }

               return result;          

​

       }

​

​

       public static int BaseToDecimal(string inputNum, int theBase)

       {

           string newInput = inputNum.ToUpper();

           string hexMap = "0123456789ABCDEF";

           int decimalValue = 0;

           int power = inputNum.Length;

​

           for (int i = 0; i < inputNum.Length; i++)

           {

               string eachValue = newInput.Substring(i, 1);

               int Value = hexMap.IndexOf(eachValue);

               decimalValue += Value * (int)Math.Pow(theBase, power - 1);

               power--;

           }

           return decimalValue;

       }

​

   }

​

}