#include <algorithm>
#include <cmath>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <iostream>
#include <map>
#include <queue>
#include <set>
#include <string>
#include <vector>
using namespace std;
typedef pair<int, int> pii;
#define rep(i,x) for(int i=0;i<(int)(x);i++)

int main(){
	int w, d;
	cin >> w >> d;
	for (long i = d; i > 1; --i) w -= w/(i*i);
	cout << w << endl;
	return 0;
}