valid C# program containing 16 keywords in a row (https://twitter.com/KirillOsenkov/status/1529288974757339136?s=20&t=o5L0FUf350joCBFpFkQdNQ)

ugly.cs

#if false
throw null;
#else
#endif

unsafe get @event(ref string @as, byte? @throw = sizeof(double))
{
    lock(typeof(get)) {}

    try
    {
        return default(uint) switch
        {
            new uint() => default(get),
            _ => default(get)
        };

    }
    catch when (true is not false && false is not true)
    {

    }
    finally
    {
    }

#if true
    return default;
#else
    return default;
#endif
}

public readonly struct @get
{
    public readonly uint @set;
    private readonly string @out;
}