C11112331312111112111133133313331333133313331333133313331333132322121133131221   >>    C1111233131211111211113313331333133313331333133313331333133313232212113313122   <<    C11112331312111112111133133313331333133313331333133313331333132322121133131223   >>      C11112331312111112111133133313331333133313331333133313331333132322121133131222   >>