B3311331313231311331322331333132313232233131323132313331323132322123221   >>    B331133131323131133132233133313231323223313132313231333132313232212322   <<    B3311331313231311331322331333132313232233131323132313331323132322123223   >>      B3311331313231311331322331333132313232233131323132313331323132322123222   >>