class E_up

class Monkey{private int n=100;void speak(String s){System.out.println(s);}}class People extends Monkey{void compute(int a,int b){int c=a+b;System.out.println(a+"+"+b+"="+c);}void speak(String s){System.out.println("**"+s+"**");}}class E_up{public static void main(String[] args){Monkey monkey=new People();monkey.speak("fdfdfdfdfdf");People people=(People) monkey;people.compute(10,10);}}