#include<iostream>
#include<iomanip>
#include<cmath>
using namespace std;
int main()
{
int n,m,x,leap;
cin>>n>>m>>x;
if(n%(m*x)==0)
leap=0;
else
leap=1;
cout<<n/m/x+leap<<endl;
return 0;

}

#include<iostream>
#include<cmath>
#include<iomanip>
using namespace std;
int main()
{
long n,m,x;
cin>>n>>m>>x;
cout<<n*1.0/m/x;
return 0;
}why