#include<iostream>
#include<string>
#include<algorithm>
#include<cctype>
#include<set>
#include<bitset>
#include<math.h>
#include<map>
#include<queue>
#include<iomanip>
using namespace std;

int main(){
    int w, d, dif;
    cin >> w >> d;
    for (int i = d; i > 1; i--){
        int diff = w/pow(i, 2);
        w -= diff;
    }
    cout << w << endl;
}