B33113313132313113313223313331323133313231313232233132322133313233313232211311   >>    B3311331313231311331322331333132313331323131323223313232213331323331323221131   <<    B33113313132313113313223313331323133313231313232233132322133313233313232211313   >>      B33113313132313113313223313331323133313231313232233132322133313233313232211312   >>