C11112331312111112111133133313331333131121211312111133132233132223131   >>    C1111233131211111211113313331333133313112121131211113313223313222313   <<    C11112331312111112111133133313331333131121211312111133132233132223133   >>      C11112331312111112111133133313331333131121211312111133132233132223132   >>