#include <string>
#include <iostream>
using namespace std;

class Stock
{
public:
    void buy()
    {
        cout << "Stock [ Name: " + name + ", Quantity: " + std::to_string(quantity) + " ] bought" << endl;
    }
    void sell()
    {
        cout << "Stock [ Name: " + name + ", Quantity: " + std::to_string(quantity) + " ] sold" << endl;
    }

private:
    string name = "test";
    int quantity = 10;
};