import java.lang.Math;

import java.io.*;

public class bai3 {

public static void main (String args[]) {

BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

String st;

float r, h;

System.out.print("Nhap ban kinh hinh tron r = ");

try {

st = br.readLine();

r = Float.parseFloat(st);

} catch(IOException e) { r=0.0F; }

System.out.println("Nhap chieu cao hinh tru h = ");

try {

st = br.readLine();

h = Float.parseFloat(st);

} catch(IOException e) {h=0.0F;}

float S = (float) (r * r * Math.PI);

float V = S*h;

System.out.println("Dien tich : S = " + S);

System.out.println("The tich : V = " + V);

}

}