C Sharp (C#) Long and ulong datatype

Long and ulong are very similar to Integer type ( int ) but has a very high range of numbers that it can accept. Long has a range of about –9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 and ulong has a range of about 0 to 18,446,744,073,709,551,615.

While using long datatype and assigning a long value to a variable, its recommended to suffix L with the number being assigned.
long x = 1234567890L; (something like this for long)
ulongx = 1234567890uL; (something like this for ulong)

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

namespace ConsoleApplication

{

    class Program

    {

        static void Main(string[] args)

        {

            long a = 1234567890L;

            long b = 1234567890L;

            long c = a * b;

            Console.WriteLine("The addition of two signed long numbers {0} and {1} is : {2}", a, b, c);

            Console.ReadLine();

            ulong d = 1234567890uL;

            ulong e = 1234567890uL;

            ulong f = d * e;

            Console.WriteLine("The addition of two unsigned long numbers {0} and {1} is : {2}", d, e, f);

            Console.ReadLine();

        }

    }

}

Output :

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