B33113313132313113313223313331323133313223313231333133112111112111111222111   >>    B3311331313231311331322331333132313331322331323133313311211111211111122211   <<    B33113313132313113313223313331323133313223313231333133112111112111111222113   >>      B33113313132313113313223313331323133313223313231333133112111112111111222112   >>