#include <iostream>
#include <sstream>
#include <string_view>
#include <thread>

using namespace std::literals;

auto T = 100ms;

void f(const std::jthread &j, std::string_view s)
{
    for (auto i : s)
        if (j.get_stop_token().stop_requested())
        {
            std::this_thread::yield();
        }
        else
        {
            std::ostringstream oss;
            oss << "[" << j.get_id() << "]: " << i << "\n";
            std::cout << oss.str();
            std::this_thread::sleep_for(T);
        }
}

int main()
{
    std::jthread j[2] = {std::jthread(f, std::ref(j[0]), "01234"),
                         std::jthread(f, std::ref(j[1]), "abcde")};
    std::this_thread::sleep_for(2 * T);
    j[0].request_stop();
    j[1].join();
}