#include <iostream>
#include <sstream>
#include <math.h>
#include <stack>
#include <set>
#include <algorithm>
#include <string>
#include <queue>
#include <stack>
#include <map>
#include <cstdio>
#include <vector>
using namespace std;

#define INF (1 << 30)
#define INFLL (1LL << 60)

int main() {
	long long int w,d;
	cin >> w >> d;
	for(long long int i = d;i >= 2;i--){

		w -= w / (i*i);
	}
	cout << w << endl;
	return 0;
}