document.write('
#include <iostream>
using namespace std;
int main()
{
double input;
cout.setf(ios::fixed);
cout.precision(2);
while(cin>>input)
{
cout.setf(ios::fixed);
cout.precision(2);
if(input!=0)
{
cout<<input<<endl;
}
else
{
cout<<"0.00"<<endl;
}
}
return 0;
}
');