SumOfFiveNumbers

using System;

namespace _07_SumOfFiveNumbers
{
    class SumOfFive
    {
        static void Main()
        {
            double a = 0;
            double b = 0;
            double sum=0;
            Console.WriteLine("Enter 5 numbers separated by a space");
            string[] userInput = Console.ReadLine().Split();

             for (int i = 0; i < 5; i++)
                {
                    a = Convert.ToDouble(userInput[i]);
                    sum = a + b;
                    b = sum;
                }

            Console.WriteLine("Sum of first five Numbers is {0}",sum);
        }
    }
}