import java.util.Scanner;

abstract class Vehicle {
    abstract void rent(float days, float price);
}

class Car extends Vehicle {
    void rent(float days, float price) {
        float total = days * price;
        System.out.printf("$%.2f", total);
    }
}

class Bike extends Vehicle {
    void rent(float days, float price) {
        float total = days * price;
        System.out.printf("$%.2f", total);
    }
}

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        String v = sc.next();
        float days = sc.nextFloat();
        float price = sc.nextFloat();

        if (days <= 0 || price <= 0) {
            System.out.println("Invalid input");
        } else if (v.equalsIgnoreCase("car")) {
            Vehicle c = new Car();
            c.rent(days, price);
        } else if (v.equalsIgnoreCase("bike")) {
            Vehicle b = new Bike();
            b.rent(days, price);
        } else {
            System.out.println("Invalid input");
        }
    }
}
import java.util.Scanner;

abstract class Vehicle {
    abstract void rent(float days, float price);
}

class Car extends Vehicle {
    void rent(float days, float price) {
        float total = days * price;
        System.out.printf("$%.2f", total);
    }
}

class Bike extends Vehicle {
    void rent(float days, float price) {
        float total = days * price;
        System.out.printf("$%.2f", total);
    }
}

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        String v = sc.next();
        float days = sc.nextFloat();
        float price = sc.nextFloat();

        if (days <= 0 || price <= 0) {
            System.out.println("Invalid input");
        } else if (v.equalsIgnoreCase("car")) {
            Vehicle c = new Car();
            c.rent(days, price);
        } else if (v.equalsIgnoreCase("bike")) {
            Vehicle b = new Bike();
            b.rent(days, price);
        } else {
            System.out.println("Invalid input");
        }
    }
}
import java.util.Scanner;

abstract class Vehicle {
    abstract void rent(float days, float price);
}

class Car extends Vehicle {
    void rent(float days, float price) {
        float total = days * price;
        System.out.printf("$%.2f", total);
    }
}

class Bike extends Vehicle {
    void rent(float days, float price) {
        float total = days * price;
        System.out.printf("$%.2f", total);
    }
}

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        String v = sc.next();
        float days = sc.nextFloat();
        float price = sc.nextFloat();

        if (days <= 0 || price <= 0) {
            System.out.println("Invalid input");
        } else if (v.equalsIgnoreCase("car")) {
            Vehicle c = new Car();
            c.rent(days, price);
        } else if (v.equalsIgnoreCase("bike")) {
            Vehicle b = new Bike();
            b.rent(days, price);
        } else {
            System.out.println("Invalid input");
        }
    }
}