C312312111111331312111133133313331333121111121133133313331322132222331312233121   >>    C31231211111133131211113313331333133312111112113313331333132213222233131223312   <<    C312312111111331312111133133313331333121111121133133313331322132222331312233123   >>      C312312111111331312111133133313331333121111121133133313331322132222331312233122   >>