C11112331312111112111133133313331333133313331333133313331333131121123332321   >>    C1111233131211111211113313331333133313331333133313331333133313112112333232   <<    C11112331312111112111133133313331333133313331333133313331333131121123332323   >>      C11112331312111112111133133313331333133313331333133313331333131121123332322   >>