package yukicoder;

import java.util.Scanner;

public class Yuki51 {
	
	public static void main(String[] args) {
		
		Scanner scan = new Scanner(System.in);
		int w = scan.nextInt();
		int d = scan.nextInt();
		scan.close();
		for(int i = d; i>0; i--){
			if(i == 1) {
				System.out.println(w);					
			}
			w -= w/(i*i);
		}
	}
}