B3311331313231311331322331333132322331323231333133313331311323321   >>    B331133131323131133132233133313232233132323133313331333131132332   <<    B3311331313231311331322331333132322331323231333133313331311323323   >>      B3311331313231311331322331333132322331323231333133313331311323322   >>