C11112331312111112111133133313331333133112111111331333133313331333132313222231   >>    C1111233131211111211113313331333133313311211111133133313331333133313231322223   <<    C11112331312111112111133133313331333133112111111331333133313331333132313222233   >>      C11112331312111112111133133313331333133112111111331333133313331333132313222232   >>