C313212111113331323312111133133313331333133313331333133313331331121111121223121   >>    C31321211111333132331211113313331333133313331333133313331333133112111112122312   <<    C313212111113331323312111133133313331333133313331333133313331331121111121223123   >>      C313212111113331323312111133133313331333133313331333133313331331121111121223122   >>