B33113313132313113313223313331311331323133313132322331313311221   >>    B3311331313231311331322331333131133132313331313232233131331122   <<    B33113313132313113313223313331311331323133313132322331313311223   >>      B33113313132313113313223313331311331323133313132322331313311222   >>