C11112331312111112111133133313331333133313331333133313331333133313222233112321   >>    C1111233131211111211113313331333133313331333133313331333133313331322223311232   <<    C11112331312111112111133133313331333133313331333133313331333133313222233112323   >>      C11112331312111112111133133313331333133313331333133313331333133313222233112322   >>