C11112331312111112111133133313331333132313233313113313331323132111   >>    C1111233131211111211113313331333133313231323331311331333132313211   <<    C11112331312111112111133133313331333132313233313113313331323132113   >>      C11112331312111112111133133313331333132313233313113313331323132112   >>