#include<bits/stdc++.h>
using namespace std;
double a,b;
int main(){
	cin>>a>>b;
	cout<<ceil(a/b);
	return 0;
}
/**************************************************************
	Problem: 1030
	User: zhangziang
	Language: C++
	Result: Accepted
	Time:7 ms
	Memory:2072 kb
****************************************************************/