#include <bits/stdc++.h>

#define ll long long
#define ld long double
#define rep(i,a,b) for (int i = a; i < b; i++)
#define irep(i,a,b) for (ll i = a; i > b; i--)
#define print(n) cout << n << endl
#define rup(a,b) (a+b-1)/b

using namespace std;

int main(){
    cout << fixed << setprecision(15);
    
    ll W,D;
    cin>>W>>D;

    irep(i,D,1){
        W -= (W/(i*i));
    }
    print(W);
    
    //system("pause");
    return 0;
}