C31321211111333132331211113313331333133313331333133313331333133313123211   >>    C3132121111133313233121111331333133313331333133313331333133313331312321   <<    C31321211111333132331211113313331333133313331333133313331333133313123213   >>      C31321211111333132331211113313331333133313331333133313331333133313123212   >>