C11112331312111112111133133313331333133313133313331333133313311211113322113131   >>    C1111233131211111211113313331333133313331313331333133313331331121111332211313   <<    C11112331312111112111133133313331333133313133313331333133313311211113322113133   >>      C11112331312111112111133133313331333133313133313331333133313311211113322113132   >>