C11112331312111112111133133313331333133313331333133313331333131121123323221   >>    C1111233131211111211113313331333133313331333133313331333133313112112332322   <<    C11112331312111112111133133313331333133313331333133313331333131121123323223   >>      C11112331312111112111133133313331333133313331333133313331333131121123323222   >>