#include <iostream>

class TextOut
{
    friend TextOut& operator<<(TextOut& to, std::string text);

private:
    std::ostream& stream() { return std::cout; }
};

TextOut& operator<<(TextOut& to, std::string text)
{
    to.stream() << text;
    return to;
}

template<typename T>
TextOut& operator<<(TextOut& to, T val)
{
    to << std::to_string(val);
    return to;
}

int main()
{
    TextOut to;
    to << 5;
    return 0;
}