// https://www.hackerrank.com/challenges/java-covariance

class Flower {

String whatsYourName() {

return "I have many names and types.";

}

}

class Jasmine extends Flower {

@Override

String whatsYourName() {

return "Jasmine";

}

}

class Lily extends Flower {

@Override

String whatsYourName() {

return "Lily";

}

}

class Lotus extends Flower {

@Override

String whatsYourName() {

return "Lotus";

}

}

class State {

Flower yourNationalFlower() {

return new Flower();

}

}

class WestBengal extends State {

@Override

Jasmine yourNationalFlower() {

return new Jasmine();

}

}

class Karnataka extends State {

@Override

Lotus yourNationalFlower() {

return new Lotus();

}

}

class AndhraPradesh extends State {

@Override

Lily yourNationalFlower() {

return new Lily();

}

}