C31232233133313221211113313331333133313331212111112111112323311231   >>    C3123223313331322121111331333133313331333121211111211111232331123   <<    C31232233133313221211113313331333133313331212111112111112323311233   >>      C31232233133313221211113313331333133313331212111112111112323311232   >>