C313212111113331323312111133133313331333133313331333133112111133132323121   >>    C31321211111333132331211113313331333133313331333133313311211113313232312   <<    C313212111113331323312111133133313331333133313331333133112111133132323123   >>      C313212111113331323312111133133313331333133313331333133112111133132323122   >>