#include <iostream>

using namespace std;

class Figure
{
    string name;

public:
    Figure(){;}
    Figure(string n_name){name = n_name;}

    virtual double field()
    {
        return 0;
    }

    virtual string type()
    {
        return "blank";
    }

    string show_name()
    {
        return name;
    }
};

class Square : public Figure
{
    double a;

public:
    Square(string n_name, double n_a):Figure(n_name){a = n_a;}

    virtual double field()
    {
        return a*a;
    }

    virtual string type()
    {
        return "kwadrat";
    }
};

class Triangle : public Figure
{
    double a;
    double h;

public:
    Triangle(string n_name, double n_a, double n_h):Figure(n_name){a = n_a; h = n_h;}

    virtual double field()
    {
        return 0.5*a*h;
    }

    virtual string type()
    {
        return "trojkat";
    }
};

class Container
{
    int size;
    int counter;
    Figure figures[5];

public:
    Container(int n_size){size = n_size; counter=0;}

    void show()
    {
        for(int i=0;i<counter;i++)
        {
            cout << figures[i].show_name() << " " << figures[i].type() << " " << figures[i].field() << endl;
        }
    }

    void add(Figure n_figure)
    {
        if(counter<size)
        {
            figures[counter] = n_figure;
            counter++;
        }
        else cout << "BRAK MIEJSCA!" << endl;
    }

    void del(double field)
    {
        for(int i=0;i<counter;i++)
        {
            if(figures[i].field()==field) figures[i] = Figure();
        }
    }
};

int main()
{
    int a,h;
    string name;

    int n;
    //cin >> n;

    Container kontener(5);

    int m;
    //cin >> m;

    string typ;
    /*for(int i=0;i<m;i++)
    {
        cout << "PODAJ TYP: " << endl;
        cin >> typ;
        if(typ=="kwadrat")
        {
            cin >> name >> a;

        }
        else if(typ=="trojkat")
        {
            cin >> name >> a >> h;
        }
    }*/

    Square kwadrat("kwadracik",5);
    Triangle trojkat("trojkacik",4,3);

    cout << kwadrat.field() << " " << kwadrat.type() << " " << trojkat.field() << " " << trojkat.type() << endl;

    kontener.add(kwadrat);
    kontener.add(trojkat);
    kontener.show();
    return 0;
}