import java.io.*;
public class lat4
{
public static void main(String args[])
{
double hasil,luas,total,diskon;
try
{
BufferedReader inputA=new BufferedReader (new InputStreamReader(System.in));
System.out.print("jenis keramik : ");
String input1=inputA.readLine();
BufferedReader ts=new BufferedReader (new InputStreamReader(System.in));
System.out.print("harga/m2 : ");
String input2=ts.readLine();
double B=Double.parseDouble(input2);
System.out.println(" ");
System.out.println("ukuran keramik ");
System.out.println(" ");
BufferedReader pj=new BufferedReader (new InputStreamReader(System.in));
System.out.print("panjang : ");
String input3=pj.readLine();
double C=Double.parseDouble(input3);
BufferedReader lb=new BufferedReader (new InputStreamReader(System.in));
System.out.print("lebar : ");
String input4=lb.readLine();
double D=Double.parseDouble(input4);
luas=(C*D);
if (luas>=10)
{
}
else
{System.out.println("di tolak");
System.exit(0);
}
total=(luas*B);
diskon=(total*0.1);
hasil=(total-diskon);
System.out.println("Luas keramik "+luas+" meter persegi");
System.out.println("total =Rp "+total);
System.out.println("diskon =Rp "+diskon);
System.out.println("total bayar =Rp "+hasil);
}
catch (IOException e)
{
e.printStackTrace();
}
}
}