B3311331313231311331322331333132313331322331323133322331323132322232311   >>    B331133131323131133132233133313231333132233132313332233132313232223231   <<    B3311331313231311331322331333132313331322331323133322331323132322232313   >>      B3311331313231311331322331333132313331322331323133322331323132322232312   >>