C111123313121111121111331333133313331333133313331333133313332123313233321   >>    C11112331312111112111133133313331333133313331333133313331333212331323332   <<    C111123313121111121111331333133313331333133313331333133313332123313233323   >>      C111123313121111121111331333133313331333133313331333133313332123313233322   >>