import java.util.Scanner;

class Circle
{
public static void main (String args[])
{
Scanner scr=new Scanner(System.in);

System.out.println("Enter a radius:");
int radius=scr.nextInt();

float PI=3.142f;

double Area=PI*(radius*radius);
System.out.printf("Area is:%.2f",Area);

double Circumferance=2*PI*radius;
System.out.printf("\nCircumferance is:%.2f",Circumferance);
}
}