class Box {
private:
    int l = 0, b = 0, h = 0;
    
public:
    Box() = default;
    Box(int l, int b, int h)
        : l(l), b(b), h(h) {}
    Box(const Box& other)
        : l(other.l), b(other.b), h(other.h) {}
        
    int getLength() { return l; }
    int getBreadth() { return b; }
    int getHeight() { return h; }
    
    long long CalculateVolume() { return (long)(l * b) * h; }
    
    bool operator<(Box& other) { 
        if (this->l < other.l) return true;
        else if ((this->b < other.b) && (this->l == other.l)) return true;
        else if ((this->h < other.h) && (this->l == other.l) && (this->b == other.b)) return true;
        else return false;
    }
    friend ostream& operator<<(ostream& oss, Box &box) {
        oss << box.l << " " << box.b << " " << box.h;
        return oss;
    }
};