B3311331313231311331322331333132333132332113313331333132322331323223313113231   >>    B331133131323131133132233133313233313233211331333133313232233132322331311323   <<    B3311331313231311331322331333132333132332113313331333132322331323223313113233   >>      B3311331313231311331322331333132333132332113313331333132322331323223313113232   >>