14

#include <string>
#include <iostream>

class cStudent {
private:
    std::string studentName;
    long groupNumber;
    float studentRate;

public:
    cStudent(const std::string& name, long group, float rate) :
        studentName(name), groupNumber(group), studentRate(rate) { }
    ~cStudent() = default;

    friend std::ostream& operator<<(std::ostream& out, cStudent& st) {
        out << "Student " << st.studentName << " from group " << st.groupNumber << " has rate " << st.studentRate << "\n";
        return out;
    }
};

int main() {
    cStudent st("Hello World", 850505, 4.5);
    std::cout << st;
}