C313212111113331323312111133133313331333133313331333133313233123121   >>    C31321211111333132331211113313331333133313331333133313331323312312   <<    C313212111113331323312111133133313331333133313331333133313233123123   >>      C313212111113331323312111133133313331333133313331333133313233123122   >>