C11112331312111112111133133313331333132323133313331333133323133313221323231   >>    C1111233131211111211113313331333133313232313331333133313332313331322132323   <<    C11112331312111112111133133313331333132323133313331333133323133313221323233   >>      C11112331312111112111133133313331333132323133313331333133323133313221323232   >>