B3311331313231311331322331333132333133313132233132322331322123221   >>    B331133131323131133132233133313233313331313223313232233132212322   <<    B3311331313231311331322331333132333133313132233132322331322123223   >>      B3311331313231311331322331333132333133313132233132322331322123222   >>