C31232233133313221211113313331333133313331212111112111112323123221   >>    C3123223313331322121111331333133313331333121211111211111232312322   <<    C31232233133313221211113313331333133313331212111112111112323123223   >>      C31232233133313221211113313331333133313331212111112111112323123222   >>