#include <iostream>

// Your code here

int main()
{
    Product coffee { 20.0 };
    Product pan { 199.0 };
    Fuel electricty { 2.0, 0.8 };
    Fuel petrol { 4.0, 0.5 };
    Food potato { 1.5 };
    Food tomato { 5.0 };

    std::cout << "Total prices: " << std::endl;
    std::cout << "coffee: " << coffee.total_price() << std::endl;
    std::cout << "pan: " << pan.total_price() << std::endl;
    std::cout << "electricty: " << electricty.total_price() << std::endl;
    std::cout << "petrol: " << petrol.total_price() << std::endl;
    std::cout << "potato: " << potato.total_price() << std::endl;
    std::cout << "tomato: " << tomato.total_price() << std::endl;
}