C11112331312111112111133133313331333133313331333133313113313231333121131   >>    C1111233131211111211113313331333133313331333133313331311331323133312113   <<    C11112331312111112111133133313331333133313331333133313113313231333121133   >>      C11112331312111112111133133313331333133313331333133313113313231333121132   >>