C11112331312111112111133133313331333133313331333133313331333131211331211211   >>    C1111233131211111211113313331333133313331333133313331333133313121133121121   <<    C11112331312111112111133133313331333133313331333133313331333131211331211213   >>      C11112331312111112111133133313331333133313331333133313331333131211331211212   >>