import java.util.*;
class periarea
{
    public static void main(String args[])
    {
         Scanner sc = new Scanner(System.in);
         System.out.println("Enter radius");
         double r = sc.nextDouble();
         System.out.println("Area is =" +(3.14*r*r));
         System.out.println("Perimeter is =" +(2*3.14*r));
    }
}