C3123121111331312121111331333133313331333121333131211111232322331323233121   >>    C312312111133131212111133133313331333133312133313121111123232233132323312   <<    C3123121111331312121111331333133313331333121333131211111232322331323233123   >>      C3123121111331312121111331333133313331333121333131211111232322331323233122   >>