using System;

public class Program

{

    public static string Convert(object myInput)

    {

        // format to display as  $28,790.68

        if (myInput is int)

        {

            Console.WriteLine("int");

            int myInt = (int)myInput;

            decimal d = (decimal)myInt / 100;

            string formattedString = String.Format("{0:C}", d);

            Console.WriteLine(formattedString);

            return formattedString;

        }

        else if (myInput is string)

        {

            Console.WriteLine("string");    

            var myString = decimal.Parse("2879068") / 100m;

            string formattedString = String.Format("{0:C}", myString);

​

            Console.WriteLine(formattedString);

            return formattedString;

        }

        return "0";  // is not string or int

​

    }

​

    public static void Main()

    {

        Convert(123456);

        Convert("123456");

    }

}