C11112331312111112111133133313331333133313123313331331123132212311211   >>    C1111233131211111211113313331333133313331312331333133112313221231121   <<    C11112331312111112111133133313331333133313123313331331123132212311213   >>      C11112331312111112111133133313331333133313123313331331123132212311212   >>