B3311331313231311331322331333132333132332113313331333132322331312312122321   >>    B331133131323131133132233133313233313233211331333133313232233131231212232   <<    B3311331313231311331322331333132333132332113313331333132322331312312122323   >>      B3311331313231311331322331333132333132332113313331333132322331312312122322   >>