B3311331313231311331322331333132313331322121133133313331333132232111111211321   >>    B331133131323131133132233133313231333132212113313331333133313223211111121132   <<    B3311331313231311331322331333132313331322121133133313331333132232111111211323   >>      B3311331313231311331322331333132313331322121133133313331333132232111111211322   >>