#51558: 嘿嘿嘿~~~
1121228@stu.wghs.tp.edu.tw
(你知道我是誰嗎!!??)
#include <bits/stdc++.h>
using namespace std;
int main() {
float V, I, R;
while(cin >> V >> R){
I=round(V/R*1000*10000)/10000;
cout << fixed << setprecision(4) << I << endl;
}
return 0;
}