import java.util.*;

class Yuki51 {
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    double w = sc.nextDouble();
    double d = sc.nextDouble();
    for(double i=d; i>1; --i){
      double a = i*i;
      double b = w/a;
      int c = (int)b;
      w-=c;
    }
    int w2 = (int)w;
    System.out.println(w2);
  }
}