C31231211113313121211113313331333132233132322331323133313233232311   >>    C3123121111331312121111331333133313223313232233132313331323323231   <<    C31231211113313121211113313331333132233132322331323133313233232313   >>      C31231211113313121211113313331333132233132322331323133313233232312   >>