import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Main {


    public static void main(String[] args) throws IOException {
        BufferedReader reader =new BufferedReader(new InputStreamReader(System.in));
        int W = Integer.parseInt(reader.readLine());
        int D = Integer.parseInt(reader.readLine());
        for (int i = D; i > 1 ; i--) {
           
            W = W - W/(i*i);
        }
        System.out.println(W);

    }
}