C3123121111331311213331333131133133313331333133313331331123221131211   >>    C312312111133131121333133313113313331333133313331333133112322113121   <<    C3123121111331311213331333131133133313331333133313331331123221131213   >>      C3123121111331311213331333131133133313331333133313331331123221131212   >>