C111123313121111121111331333133313331333131121133133313232213231   >>    C11112331312111112111133133313331333133313112113313331323221323   <<    C111123313121111121111331333133313331333131121133133313232213233   >>      C111123313121111121111331333133313331333131121133133313232213232   >>