#include <bits/stdc++.h>
#define PB push_back
#define MP make_pair
#define REP(i,n) for (int i=0;i<(n);i++)
#define FOR(i,a,b) for(int i=(a);i<(b);i++)
#define ALL(a) (a).begin(),(a).end()
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef pair<int,int> P;
const int INF=1e9;
int main(){
      int w,d;
      cin>>w>>d;
      REP(i,d-1) {
        int dd = d-i;
        w -= (int)(w / pow(dd, 2));
    }
      cout<<w<<endl;
}