SoftUni - 4.1 Sum of 3 Numbers

using System;
using System.Threading;
using System.Globalization;


class SumOfNumes
{
     static void Main()
    {
    //Write a program that reads 3 real numbers from the console and prints their sum.

        Thread.CurrentThread.CurrentCulture = System.Globalization.CultureInfo.InvariantCulture;
        Console.Write("Enter the First number: ");
        double a = double.Parse(Console.ReadLine());

        Console.Write("Enter the Second number: ");
        double b = double.Parse(Console.ReadLine());

        Console.Write("Enter the Third number: ");
        double c = double.Parse(Console.ReadLine());

        Console.WriteLine("The sum of these numbers is: " + "{0} + {1} + {2} = {3}", a, b, c, a + b + c);

     }
}