B33113313132313113313223313331323133313223313231333133112111133133313123312121   >>    B3311331313231311331322331333132313331322331323133313311211113313331312331212   <<    B33113313132313113313223313331323133313223313231333133112111133133313123312123   >>      B33113313132313113313223313331323133313223313231333133112111133133313123312122   >>