C111123313121111121111331333133313331333133313331333133313331311221123122321   >>    C11112331312111112111133133313331333133313331333133313331333131122112312232   <<    C111123313121111121111331333133313331333133313331333133313331311221123122323   >>      C111123313121111121111331333133313331333133313331333133313331311221123122322   >>