Newb Questions - AMS Lite Hub

I have my A1 set up and have done my first print. Now I need to attach the AMS Lite but am curious as to what order the PTFE tubes go into the AMS Hub on the A1? I've looked and looked but can't find any info that suggests the tubes go into the hub in any particular order. So, are the inputs on the hub numbered in some mysterious way or does it even matter?