import java.util.Scanner;
public class Main {
    
    public static void main(String[] args) {
        
        Scanner sc = new Scanner(System.in);
        int weight = sc.nextInt();
        double height = sc.nextInt()*0.01;
        double bmi = weight / (height * height);
        System.out.println(String.format("%.2f",bmi));
    }
}