#include <iostream>
#include <iomanip>
 
using namespace std;
 
 
class day
{
    friend class product;
private:
    int number;
    double bel;
    double ygl;
    double gur;
    double kkal;
public:
    friend std::ostream& operator<<(std::ostream& fout, day dy)
    {
        fout<< dy.number<<std::endl;
        return fout<< dy.bel <<  ' ' <<dy.gur <<  ' ' <<dy.ygl <<  ' ' <<dy.kkal<<std::endl;
    }
};
 
 
int main(int argc, const char * argv[])
{
    day d;
    cout << d;
}
 
 
 

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