C111123313121111121111331333133313331323232133313331333121111331333133112111231   >>    C11112331312111112111133133313331333132323213331333133312111133133313311211123   <<    C111123313121111121111331333133313331323232133313331333121111331333133112111233   >>      C111123313121111121111331333133313331323232133313331333121111331333133112111232   >>