Double 301-Permanent Redirect

Is Google not comfortable with Double 301-Permanent Redirect .

[anzi]

I have 3 website www.111.com, www.222.com, www.333.com. I have placed 301-redirection from www.111.com/r.html to www.222.com/a.html then I placed a 301-redirection from www.222.com/a.html to www.333.com/x.html, on browser level my page www.111.com/r.html gets directly redirected to www.333.com/x.html.

Google has tagged the URL www.111.com/r.html as "Supplemental Result". Is google not friendly with Double 301-Permanent re-direction?

[g1smd]

You should avoid having a redirection chain whenever you can.

Get A to redirect to C.
Get B to redirect to C.

Job Done.

[leadegroot]

and if you can't avoid the chained redirect - why are you surprised that the pages that don't exist are supplemental?
Why would they be in the main index when the user can't get to them?
This is not a penalty, this is just common sense.
The bot has said 'right, this one doesn't exist, chuck it over there, now, where are we supposed to be? Ah, a 301. I'll pass PR through and plan a visit to the redirectee'.