import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        // 3.1
        /*  1
        Scanner scan = new Scanner(System.in);
        System.out.println("Enter grade");
        float x = scan.nextFloat();
        //double x = scan.nextDouble();
        if(x >= 5.5) {
            System.out.println("Excellent");
        }else {
            System.out.println("Not excellent");
        }
        */

        /* 2
        Scanner scan = new Scanner(System.in);
        int number = scan.nextInt();

        if(number % 2 == 0) {
            System.out.println("Even");
        }else {
            System.out.println("odd");
        }
        */

        /*

        Scanner s = new Scanner(System.in);
        String text = s.next().toLowerCase()
        int lengthText = text.length();
        System.out.println(text.charAt(lengthText));
        */

        /*
        Scanner s = new Scanner(System.in);
        int n1 = s.nextInt();
        int n2 = s.nextInt();
        int n3 = s.nextInt();

        if(n1 == n2 && n1 == n3) {
            System.out.println("yes");
        }else {
            System.out.println("no");
        }
        */


        Scanner s = new Scanner(System.in);
        String figure = s.next();

        if(figure.equals("square")) {

            int site = s.nextInt();
            int result = site * site;
            System.out.println(result);

        }else if(figure.equals("rectangle")) {

            double rectLenght = s.nextDouble();
            double rectSize = s.nextDouble();
            System.out.println(rectLenght * rectSize);

        }else if(figure.equals("circle")) {
            // p * r * r
        }else if(figure.equals("triangle")) {
            // site * height
        }else {
            System.out.println("Invalid figure");
        }


    }
}