C11112331312111112111133133313331333133313331333133313331333131211331323222231   >>    C1111233131211111211113313331333133313331333133313331333133313121133132322223   <<    C11112331312111112111133133313331333133313331333133313331333131211331323222233   >>      C11112331312111112111133133313331333133313331333133313331333131211331323222232   >>