//OverrideDemo.Java
class A
{
	int i,j;
void setIJ(int i,int j)
{
	this.i=i;
	this.j=j;
}
int multiply(){
	return i*j;
}
} 
class B extends A
{
	int i,k;
	public B(int i, int k)
	{	
		this.i=i;
		this.k=k;
	}
	int multiply(){
		return i*j*k;
	}
}
public class OverrideDemo
{
	public static void main(String args[]){
		B child=new B(5,10);		
child.setIJ(3,6);
int m=child.multiply();
System.out.println("m＝"+m);	
	}
}