import java.io.*;
import java.math.BigDecimal;
import java.util.Scanner;

/**
 * Created by xs on 8/18/2016.
 */
public class Main{
    public static void main(String[] args){
       // System.out.println("Hello World!");
        BigDecimal pi=new BigDecimal ("3.141592653589793238462643383279502884197169399375105820974944592307816406286");
        Scanner cin = new Scanner(new BufferedInputStream(System.in));
        while(cin.hasNext()){
            BigDecimal num=cin.nextBigDecimal();
            System.out.println(pi.multiply((num.multiply(num))).toPlainString() +' '+pi.multiply(num.multiply(new BigDecimal("2"))).toPlainString());
        }


    }
} import java.io.*; io.* java import java.math.BigDecimal; BigDecimal java.math import java.util.Scanner; Scanner java.util public class Main{
    public static void main(String[] args){
       // System.out.println("Hello World!");
        BigDecimal pi=new BigDecimal ("3.141592653589793238462643383279502884197169399375105820974944592307816406286");
        Scanner cin = new Scanner(new BufferedInputStream(System.in));
        while(cin.hasNext()){
            BigDecimal num=cin.nextBigDecimal();
            System.out.println(pi.multiply((num.multiply(num))).toPlainString() +' '+pi.multiply(num.multiply(new BigDecimal("2"))).toPlainString());
        }


    }
} Main public static void main(String[] args){
       // System.out.println("Hello World!");
        BigDecimal pi=new BigDecimal ("3.141592653589793238462643383279502884197169399375105820974944592307816406286");
        Scanner cin = new Scanner(new BufferedInputStream(System.in));
        while(cin.hasNext()){
            BigDecimal num=cin.nextBigDecimal();
            System.out.println(pi.multiply((num.multiply(num))).toPlainString() +' '+pi.multiply(num.multiply(new BigDecimal("2"))).toPlainString());
        }


    } main {
       // System.out.println("Hello World!");
        BigDecimal pi=new BigDecimal ("3.141592653589793238462643383279502884197169399375105820974944592307816406286");
        Scanner cin = new Scanner(new BufferedInputStream(System.in));
        while(cin.hasNext()){
            BigDecimal num=cin.nextBigDecimal();
            System.out.println(pi.multiply((num.multiply(num))).toPlainString() +' '+pi.multiply(num.multiply(new BigDecimal("2"))).toPlainString());
        }


    } BigDecimal pi=new BigDecimal ("3.141592653589793238462643383279502884197169399375105820974944592307816406286"); pi new BigDecimal ("3.141592653589793238462643383279502884197169399375105820974944592307816406286") Scanner cin = new Scanner(new BufferedInputStream(System.in)); cin new Scanner(new BufferedInputStream(System.in)) while(cin.hasNext()){
            BigDecimal num=cin.nextBigDecimal();
            System.out.println(pi.multiply((num.multiply(num))).toPlainString() +' '+pi.multiply(num.multiply(new BigDecimal("2"))).toPlainString());
        } cin.hasNext() cin.hasNext cin {
            BigDecimal num=cin.nextBigDecimal();
            System.out.println(pi.multiply((num.multiply(num))).toPlainString() +' '+pi.multiply(num.multiply(new BigDecimal("2"))).toPlainString());
        } BigDecimal num=cin.nextBigDecimal(); num cin.nextBigDecimal() cin.nextBigDecimal cin System.out.println(pi.multiply((num.multiply(num))).toPlainString() +' '+pi.multiply(num.multiply(new BigDecimal("2"))).toPlainString()) System.out.println System.out System System.out pi.multiply((num.multiply(num))).toPlainString() +' '+pi.multiply(num.multiply(new BigDecimal("2"))).toPlainString() pi.multiply((num.multiply(num))).toPlainString() +' '+pi.multiply(num.multiply(new BigDecimal("2"))).toPlainString() pi.multiply((num.multiply(num))).toPlainString() pi.multiply((num.multiply(num))).toPlainString pi.multiply((num.multiply(num))) pi.multiply pi (num.multiply(num)) num.multiply num num ' ' pi.multiply(num.multiply(new BigDecimal("2"))).toPlainString() pi.multiply(num.multiply(new BigDecimal("2"))).toPlainString pi.multiply(num.multiply(new BigDecimal("2"))) pi.multiply pi num.multiply(new BigDecimal("2")) num.multiply num new BigDecimal("2") String[] args args public class Main{
    public static void main(String[] args){
       // System.out.println("Hello World!");
        BigDecimal pi=new BigDecimal ("3.141592653589793238462643383279502884197169399375105820974944592307816406286");
        Scanner cin = new Scanner(new BufferedInputStream(System.in));
        while(cin.hasNext()){
            BigDecimal num=cin.nextBigDecimal();
            System.out.println(pi.multiply((num.multiply(num))).toPlainString() +' '+pi.multiply(num.multiply(new BigDecimal("2"))).toPlainString());
        }


    }
} public class Main{
    public static void main(String[] args){
       // System.out.println("Hello World!");
        BigDecimal pi=new BigDecimal ("3.141592653589793238462643383279502884197169399375105820974944592307816406286");
        Scanner cin = new Scanner(new BufferedInputStream(System.in));
        while(cin.hasNext()){
            BigDecimal num=cin.nextBigDecimal();
            System.out.println(pi.multiply((num.multiply(num))).toPlainString() +' '+pi.multiply(num.multiply(new BigDecimal("2"))).toPlainString());
        }


    }
} Main
import java.io.*;
import java.math.BigDecimal;
import java.util.Scanner;

/**
 * Created by xs on 8/18/2016.
 */
public class Main{
    public static void main(String[] args){
       // System.out.println("Hello World!");
        BigDecimal pi=new BigDecimal ("3.141592653589793238462643383279502884197169399375105820974944592307816406286");
        Scanner cin = new Scanner(new BufferedInputStream(System.in));
        while(cin.hasNext()){
            BigDecimal num=cin.nextBigDecimal();
            System.out.println(pi.multiply((num.multiply(num))).toPlainString() +' '+pi.multiply(num.multiply(new BigDecimal("2"))).toPlainString());
        }


    }
}