#include <cstdio>
#include <generator>
#include <ranges>

int main()
{
    auto give_me_five = [] -> std::generator<int>
    {
        for (auto i: {0, 1, 2, 3, 4})
            co_yield i;
    };

    for (auto i: give_me_five())
        printf("%d ", i);
    puts("");
}