B3311331313231311331322331333132313232233131311331333131133132332322311   >>    B331133131323131133132233133313231323223313131133133313113313233232231   <<    B3311331313231311331322331333132313232233131311331333131133132332322313   >>      B3311331313231311331322331333132313232233131311331333131133132332322312   >>