B33113313132313113313223313331311331323222123313232233132323221   >>    B3311331313231311331322331333131133132322212331323223313232322   <<    B33113313132313113313223313331311331323222123313232233132323223   >>      B33113313132313113313223313331311331323222123313232233132323222   >>