C11112331312111112111133133313331333133313133313331333132313331311212111   >>    C1111233131211111211113313331333133313331313331333133313231333131121211   <<    C11112331312111112111133133313331333133313133313331333132313331311212113   >>      C11112331312111112111133133313331333133313133313331333132313331311212112   >>