Attack of the alphabet, I'm sure these are THE most uninspiring names in the history of naming...even nameless is better :P It only tells me that the author doesn't care so much about them though, I mean look at them: similar names, few abilities and little personality. Usually this would be the best part of the plot to insert a character with background that triggers an event in the current arc, but A was more like pulled into the arc because B is a jinchuuriki. Btw is his name seriously B?