C313212111113331323312111133133313331333133313331333133313331331123223313233121   >>    C31321211111333132331211113313331333133313331333133313331333133112322331323312   <<    C313212111113331323312111133133313331333133313331333133313331331123223313233123   >>      C313212111113331323312111133133313331333133313331333133313331331123223313233122   >>