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

public class Main {
	public static void main(String[] args) {
		BufferedReader buff = new BufferedReader(new InputStreamReader(System.in));

		try {
			int W = Integer.parseInt(buff.readLine());
			double D = Double.parseDouble(buff.readLine());
			while(D > 1){
				W -= (int)(W / Math.pow(D, 2));
				D--;
			}

			System.out.println(W);
		} catch (NumberFormatException e) {

		} catch (IOException e) {

		}
	}
}