static void Main(string[] args)
{
Circle s = new Circle();
int x = Int32.Parse(Console.ReadLine());
s.Area(x);
s.L(x);
s.D(x);
Console.ReadKey();
}
static void Main()
{
string [] circles_string = File.ReadAllText("../input.txt").Split('\n');
foreach (string str in circles_string)
{
string [] f = str.Split(' ');
Circle temp = Circle.Valide(double.Parse(f[0]), double.Parse(f[1]), double.Parse(f[2]));
Console.WriteLine(temp);
Console.WriteLine(temp.S());
Console.WriteLine(temp.L());
Console.WriteLine();
}
}
