C31231211113311331323133313331333133313331121133132313232212331   >>    C3123121111331133132313331333133313331333112113313231323221233   <<    C31231211113311331323133313331333133313331121133132313232212333   >>      C31231211113311331323133313331333133313331121133132313232212332   >>