C31231211113311331323133313331333133313331121133133313112123311   >>    C3123121111331133132313331333133313331333112113313331311212331   <<    C31231211113311331323133313331333133313331121133133313112123313   >>      C31231211113311331323133313331333133313331121133133313112123312   >>