#include

#include

#include

using namespace std;

int main$()\{$

double i;

double j;

double answer;

cin $>>$ i;

cin $>>$ j;

$/*$ Your code goes here $*/$

cout $<<$ fixed $<<$ setprecision$(2)$; $//$ setprecision$(2)$ outputs answer with $2$ decimal places.

cout $<<$ answer $<<$ endl;

return $0$;

$\}$