B3311331313231311331322331333132322331313331311221123231323222311   >>    B331133131323131133132233133313232233131333131122112323132322231   <<    B3311331313231311331322331333132322331313331311221123231323222313   >>      B3311331313231311331322331333132322331313331311221123231323222312   >>