B33113313132313113313223313331323132313331313232233131133132313232231221   >>    B3311331313231311331322331333132313231333131323223313113313231323223122   <<    B33113313132313113313223313331323132313331313232233131133132313232231223   >>      B33113313132313113313223313331323132313331313232233131133132313232231222   >>