B3311331313231311331322331333131133132333132333133313223313231331121111121311   >>    B331133131323131133132233133313113313233313233313331322331323133112111112131   <<    B3311331313231311331322331333131133132333132333133313223313231331121111121313   >>      B3311331313231311331322331333131133132333132333133313223313231331121111121312   >>