#include <iostream>

using namespace std;

class K2;

class K1{
    string * p1;
    public:
        K1():p1(new string[2]){
            p1[0]="brak";
            p1[1]="brak";
        }
        K1(const string& a1,const string& a2):p1(new string[2]){
            p1[0]=a1;
            p1[1]=a2;
        }
        K1(const K1& r):p1(new string[2]){
            p1[0]=r.p1[0];
            p1[1]=r.p1[1];
        }

        friend ostream& operator<<(ostream& out,const K1& r);
        friend K2;


~K1(){delete [] p1;}
};

class K2{
    K1 p1;
    double p2;
    public:
        K2():p2(0){}
        K2(const string&a1,const string&a2,const double& a3):p1(a1,a2),p2(a3){}
        K2(const K2& r):p1(r.p1),p2(r.p2){}

        friend ostream& operator<<(ostream& out,const K2& r);

        const K2 operator-(const double & pa)const{
            return K2(p1.p1[0],p1.p1[1],(p2-pa));
        }
};


ostream& operator<<(ostream& out,const K2& r){
    return out<< r.p1 << r.p2 <<endl;
}

ostream& operator<<(ostream& out,const K1& r){
    return out<< r.p1[0] << " " << r.p1[1] << " ";
}




int main(int argc, char** argv) {

    K2 ob1, ob2;
    const K2 * wsk1 = new K2("kawa","z mlekiem",4.50);
    const K2 ob3(*wsk1);
    delete wsk1;
    wsk1=0;

    const K2 * wsk2 = new K2(ob3);
    ob2=*wsk2;
    cout << ob1 << *wsk2;
    delete wsk2;
    wsk2= 0;

    cout << ob2;
    cout << ob2-1.25;

    return 0;
}