C31232233133313221211113313331333133313331212111112111112323132121   >>    C3123223313331322121111331333133313331333121211111211111232313212   <<    C31232233133313221211113313331333133313331212111112111112323132123   >>      C31232233133313221211113313331333133313331212111112111112323132122   >>