#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
const long long INF = 1LL<<60;
template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return true; } return false; }
template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return true; } return false; }
#define rep(i, n) for(int i = 0; i < (int)(n); i++)
#define rep1(i,aa,n) for(int i = aa; i <= (int)(n); i++)
#define ALL(a)  (a).begin(),(a).end()
#define ar_init(aa,val) rep(i,aa.size()) aa[i]=val;

using pii = pair<int, int>;
using Graph = vector<vector<ll>>;

int main(){

ll a,b;
cin>>a>>b;

if(a/b){
cout<<a/b<<endl;
}else{
cout<<a/b/+1<<endl;

}


}