B331133131323131133132233133313231323133313331331121111331333133313221223121   >>    B33113313132313113313223313331323132313331333133112111133133313331322122312   <<    B331133131323131133132233133313231323133313331331121111331333133313221223123   >>      B331133131323131133132233133313231323133313331331121111331333133313221223122   >>