#include <bits/stdc++.h>
using namespace std;

int main(){
    int W, D, yaruki, i, work, cnt = 0;

    cin >> W >> D;
    for(i = D; i > 0; i--){
        work = (W - cnt)/pow(i, 2);
        cnt += work;
        if(i == 1){
            cout << work << endl;
        }
    }
    return 0;
}