public class ordercost
{
public static void main (String[] args)
    {
System.out.println("number of dvds?");
int dvd= IO.readInt();

System.out.println("superfast delivery");
boolean b= IO.readBoolean();

double c=0;
double x=0;

if(b==true)
{c=12.99;
x= 4.99;}

else
{c=3.99;
x=.99;}

if(dvd>7)
{c=0.0;
x=0.0;}

double d= dvd*14.99+x*dvd+c;
System.out.println (d);
    }
}