B3311331313231311331322331333132313232233131311331333132333132223331   >>    B331133131323131133132233133313231323223313131133133313233313222333   <<    B3311331313231311331322331333132313232233131311331333132333132223333   >>      B3311331313231311331322331333132313232233131311331333132333132223332   >>