#include <bits/stdc++.h>
using namespace std;
typedef unsigned long long ul;
typedef signed long long ll;
ul over = 1000000007;

int main(void)
{
  cin.tie(0);
  ios::sync_with_stdio(false);
  cout << fixed;
  ll w, d;
  cin >> w >> d;
  for (ll i = d; i > 1; --i) {
    w -= w/(i*i);
  }
  cout << w << endl;
  return 0;
}