C11112331312111112111133133313331333133313112113313331333133313331333121323231   >>    C1111233131211111211113313331333133313331311211331333133313331333133312132323   <<    C11112331312111112111133133313331333133313112113313331333133313331333121323233   >>      C11112331312111112111133133313331333133313112113313331333133313331333121323232   >>