C#_SumOfThreeNumbers.cs

using System;


    class SumOfThreeNumbers
    {
        static void Main()
        {
            Console.WriteLine("Please enter three numbers");
            double numberOne = double.Parse(Console.ReadLine());
            double numberTwo = double.Parse(Console.ReadLine());
            double numberThree = double.Parse(Console.ReadLine());
            double sumOfNumbers = (numberOne + numberTwo + numberThree);
            Console.WriteLine("Your Result is:{0}",sumOfNumbers);     
            
        }
    }