C312322331333132212111133133313331333133312121111331121133133313232213233121   >>    C31232233133313221211113313331333133313331212111133112113313331323221323312   <<    C312322331333132212111133133313331333133312121111331121133133313232213233123   >>      C312322331333132212111133133313331333133312121111331121133133313232213233122   >>