C11112331312111112111133132313331333133313233313331333133311322231   >>    C1111233131211111211113313231333133313331323331333133313331132223   <<    C11112331312111112111133132313331333133313233313331333133311322233   >>      C11112331312111112111133132313331333133313233313331333133311322232   >>