---

Console.WriteLine("1");
DoStuffAsync();
Console.WriteLine("2");
await Task.Yield();
Console.WriteLine("3");

await Task.Yield();

static async Task DoStuffAsync()
{
    Console.WriteLine("4");
    DoNestedStuffAsync();
    Console.WriteLine("5");
}

static async Task DoNestedStuffAsync()
{
    Console.WriteLine("6");
    await Task.Yield();
    Console.WriteLine("7");
}