B3311331313231311331322331333132313132313331323223313331311331313232211   >>    B331133131323131133132233133313231313231333132322331333131133131323221   <<    B3311331313231311331322331333132313132313331323223313331311331313232213   >>      B3311331313231311331322331333132313132313331323223313331311331313232212   >>