C11112331312111112111133133313331333133313331323213331323131211   >>    C1111233131211111211113313331333133313331333132321333132313121   <<    C11112331312111112111133133313331333133313331323213331323131213   >>      C11112331312111112111133133313331333133313331323213331323131212   >>