B3311331313231311331322331333132333132332113313331333132313232211212111   >>    B331133131323131133132233133313233313233211331333133313231323221121211   <<    B3311331313231311331322331333132333132332113313331333132313232211212113   >>      B3311331313231311331322331333132333132332113313331333132313232211212112   >>