abstract class Bank{
    Bank()
    {
        System.out.println("constructor of bank");
    }
     abstract int getRateOfInterest();
}

class SBI extends Bank{
    int getRateOfInterest(){return 7;}
}
class PNB extends Bank{
    int getRateOfInterest(){return 8;}
}

class AbstractBank{
    public static void main(String[] args){
        Bank b;
        b=new SBI();
        System.out.println("Rate of Interest is: "+b.getRateOfInterest()+" %");
        b=new PNB();
        System.out.println("Rate of Interest is: "+b.getRateOfInterest()+" %");
    }}