#include<iostream>
#include<iomainp>
#include<string>
using namespace std;
int main()
{
    double profit,principal;
    std::cin>>profit>>principal;
    if(principal==0.0){
        std::cout<<"Division by zero occurs during the computation,print"<<std::endl;
    }else{
        double result = profit/principal;
        std::cout<<std::fixed<<std::setprecision(2)<<result<<std::endl;
    }
    return 0;
}