B3311331313231311331322331333132313331322331323133313331311332322232311   >>    B331133131323131133132233133313231333132233132313331333131133232223231   <<    B3311331313231311331322331333132313331322331323133313331311332322232313   >>      B3311331313231311331322331333132313331322331323133313331311332322232312   >>