B3311331313231311331322331333131133132333132333133313223313232313232331   >>    B331133131323131133132233133313113313233313233313331322331323231323233   <<    B3311331313231311331322331333131133132333132333133313223313232313232333   >>      B3311331313231311331322331333131133132333132333133313223313232313232332   >>