B331133131323131133132233133313231323133313331331121111331333132223223312121   >>    B33113313132313113313223313331323132313331333133112111133133313222322331212   <<    B331133131323131133132233133313231323133313331331121111331333132223223312123   >>      B331133131323131133132233133313231323133313331331121111331333132223223312122   >>