B33113313132313113313223313331323133313231313232233131133132313231322123221   >>    B3311331313231311331322331333132313331323131323223313113313231323132212322   <<    B33113313132313113313223313331323133313231313232233131133132313231322123223   >>      B33113313132313113313223313331323133313231313232233131133132313231322123222   >>