import java.io.*;
class y {
    public static void main (String args[])throws Exception {
        DataInputStream dis = new DataInputStream(System.in); 
        float l,b,a; 
        System.out.println("enter the lengh"); 
        l=Float.parseFloat(dis.readLine());
        System.out.println("enter the breath");
        b=Float.parseFloat(dis.readLine());
        a=l*b; 
        System.out.println("area of rect: " +a); 
        } 
        }