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