B3311331313231311331322331333132313331322331323133313232213113323131   >>    B331133131323131133132233133313231333132233132313331323221311332313   <<    B3311331313231311331322331333132313331322331323133313232213113323133   >>      B3311331313231311331322331333132313331322331323133313232213113323132   >>