import java.io.*;

public class CalcRect2 {
    public static void main(String[] args) throws IOException {
        BufferedReader in;

        in = new BufferedReader(new InputStreamReader(System.in));
        System.out.println("Enter x: ");
        float x = Float.valueOf(in.readLine().trim()).floatValue();
        System.out.println("Enter y: ");
        float y = Float.valueOf(in.readLine().trim()).floatValue();


        float circumference = 2*(x+y);
        float area          = x*y;

        System.out.println("Circumference: " + Float.toString(circumference));
        System.out.println("Area: " + Float.toString(area));
    }
}