public class Main {
  public static void main(String...args) {
    double r = new java.util.Scanner(System.in).nextDouble();

    double area = r * r * Math.PI;
    double circumference = r * 2 * Math.PI;

    System.out.printf("%f %f\n", area, circumference);
  }
} public class Main {
  public static void main(String...args) {
    double r = new java.util.Scanner(System.in).nextDouble();

    double area = r * r * Math.PI;
    double circumference = r * 2 * Math.PI;

    System.out.printf("%f %f\n", area, circumference);
  }
} Main public static void main(String...args) {
    double r = new java.util.Scanner(System.in).nextDouble();

    double area = r * r * Math.PI;
    double circumference = r * 2 * Math.PI;

    System.out.printf("%f %f\n", area, circumference);
  } main {
    double r = new java.util.Scanner(System.in).nextDouble();

    double area = r * r * Math.PI;
    double circumference = r * 2 * Math.PI;

    System.out.printf("%f %f\n", area, circumference);
  } double r = new java.util.Scanner(System.in).nextDouble(); r new java.util.Scanner(System.in).nextDouble() new java.util.Scanner(System.in).nextDouble new java.util.Scanner(System.in) double area = r * r * Math.PI; area r * r * Math.PI r * r * Math.PI r r Math.PI Math Math.PI double circumference = r * 2 * Math.PI; circumference r * 2 * Math.PI r * 2 * Math.PI r 2 Math.PI Math Math.PI System.out.printf("%f %f\n", area, circumference) System.out.printf System.out System System.out "%f %f\n" area circumference String...args args public class Main {
  public static void main(String...args) {
    double r = new java.util.Scanner(System.in).nextDouble();

    double area = r * r * Math.PI;
    double circumference = r * 2 * Math.PI;

    System.out.printf("%f %f\n", area, circumference);
  }
} public class Main {
  public static void main(String...args) {
    double r = new java.util.Scanner(System.in).nextDouble();

    double area = r * r * Math.PI;
    double circumference = r * 2 * Math.PI;

    System.out.printf("%f %f\n", area, circumference);
  }
} Main
public class Main {
  public static void main(String...args) {
    double r = new java.util.Scanner(System.in).nextDouble();

    double area = r * r * Math.PI;
    double circumference = r * 2 * Math.PI;

    System.out.printf("%f %f\n", area, circumference);
  }
}