class Box {
private:
    int length, breadth, height;

public:
    // Constructors
    Box() : length(0), breadth(0), height(0) {}
    Box(int l, int b, int h) : length(l), breadth(b), height(h) {}
    Box(const Box& box) : length(box.length), breadth(box.breadth), height(box.height) {}

    // Getter functions
    int getLength() { return length; }
    int getBreadth() { return breadth; }
    int getHeight() { return height; }

    // Calculate volume
    long long CalculateVolume() { return static_cast<long long>(length) * breadth * height; }

    // Operator overloading <
    bool operator<(const Box& b) {
        if (length < b.length)
            return true;
        else if (length == b.length && breadth < b.breadth)
            return true;
        else if (length == b.length && breadth == b.breadth && height < b.height)
            return true;
        else
            return false;
    }

    // Operator overloading <<
    friend ostream& operator<<(ostream& out, const Box& B) {
        out << B.length << " " << B.breadth << " " << B.height;
        return out;
    }
};