C111123313121111121111331333133313331333133313331333133312111133131321321   >>    C11112331312111112111133133313331333133313331333133313331211113313132132   <<    C111123313121111121111331333133313331333133313331333133312111133131321323   >>      C111123313121111121111331333133313331333133313331333133312111133131321322   >>