import java.util.Scanner;

public class JavaBasics {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        int population = Integer.parseInt(scan.nextLine());
        int years = Integer.parseInt(scan.nextLine());
        for (int i = 1; i <= years; i++) {
            population += population / 10 * 2;
            if (i % 5 == 0) {
                population -= population / 50 * 5;
            }
            population -= population / 20 * 2;
        }
        System.out.println("Beehive population: " + population);
    }
}