CirclePerimetarAndArea

using System;

//Write a program that reads the radius r of a circle and prints its perimeter and area formatted with 2 digits after the decimal point.
Examples:
//r         perimeter   area
//2         12.57       12.57
//3.5       21.99           38.48

class CirclePerimetarAndArea
{
    static void Main(string[] args)
    {
        double r = double.Parse(Console.ReadLine());
        Console.WriteLine("Perimetur = {0:F2}" , 2*r*3.14);
        Console.WriteLine("Area = {0:F2}", r * r * 3.14);

    }
}