C13223313311212111133133313331333133313232233133313331131211111331123121   >>    C1322331331121211113313331333133313331323223313331333113121111133112312   <<    C13223313311212111133133313331333133313232233133313331131211111331123123   >>      C13223313311212111133133313331333133313232233133313331131211111331123122   >>