static void Main(String[] args)
{
addition a = new addition();
Console.WriteLine("Enter Two Numbers:");
int x = Int32.Parse(Console.ReadLine());
int y = Int32.Parse(Console.ReadLine());
Console.WriteLine(a.add(y, x));
Console.ReadKey();
}
static void Main(string[] Args)
{
Console.Write("Enter Number 1: ");
int n1 = Convert.ToInt32(Console.ReadLine());
Console.Write("Enter Number 2: ");
int n2 = Convert.ToInt32(Console.ReadLine());
addition add = new addition();
Console.WriteLine("Sum of both numbers: {0}", add.add(n1, n2));
Console.ReadKey();
}