class point{
	int x,y;
	void cs(int a,int b){
		x=a;y=b;
		}
	}
	
public class dianlei{
	public static void main(String[] args)
	{
		point p1=new point( );point p2=new point( );
		p1.x=5;p1.y=10;
		p2.x=15;p2.y=20;
		System.out.print("the area is:"+p1.x*p1.y);
		System.out.print("the area is:"+p2.x*p2.y);
		}
	}