C31231211113311331323133313331333133313331333133313113313232131   >>    C3123121111331133132313331333133313331333133313331311331323213   <<    C31231211113311331323133313331333133313331333133313113313232133   >>      C31231211113311331323133313331333133313331333133313113313232132   >>