import java.util.Scanner;
abstract class shapes{
	public abstract void area();
	public abstract void perimeter();
	public abstract void read();
	Scanner in =new Scanner(System.in);
}

class rectangle extends shapes
{int l,b;
public void read(){

 System.out.println("Enter Length and Breadth ");
 l=in.nextInt();
 b=in.nextInt();
}
public void perimeter()
{
 System.out.println("Perimeter of Rectangle " + 2*(l+b));
}
public void area()
{
 System.out.println("Area of Rectangle " + l*b);
}

}

class square extends shapes{
 int side;
public void read(){
 System.out.println("Enter Side length ");
 side=in.nextInt();
 }
public void perimeter()
{
 System.out.println("Perimeter of Square " + 4*side);
}
public void area()
{
 System.out.println("Area of square " + side*side);
}

}

class circle extends shapes{
int r;
public void read(){
 System.out.println("Enter Radius ");
 r=in.nextInt();
}
public void perimeter()
{
 System.out.println("Perimeter of Circle " + 2*3.14*r);
}
public void area()
{
 System.out.println("Area of Circle " + 3.14*r*r);
}

}

class ellipse extends shapes{
int a,bb;
public void read(){
 System.out.println("Enter Lenght of Major and Minor axis");
 a=in.nextInt();
 bb=in.nextInt();
}
public void perimeter()
{
 System.out.println("Perimeter of Ellipse :" + "NIL");
}
public void area()
{
 System.out.println("Area of Ellipse :" + 3.14*a*bb);
}

}

class felix{
public static void main(String args[])
{
Scanner in =new Scanner(System.in);
 int n=1;

while(n!=5){
System.out.println("\nEnter Choice \n1:rectangle \n2.square \n3.circle \n4.ellipse \n5.Exit");
n=in.nextInt();
switch(n)
{
case 1:
rectangle r = new rectangle();
r.read();
r.perimeter();
r.area();
break;
case 2:
square s = new square();
s.read();
s.perimeter();
s.area();break;
case 3:
circle c = new circle();
c.read();
c.perimeter();
c.area();break;
case 4:ellipse e = new ellipse();
e.read();
e.perimeter();
e.area();break;
case 5:
break;
}

}
}
}