C31231211111133131211113313331333131211111211111323223313232131   >>    C3123121111113313121111331333133313121111121111132322331323213   <<    C31231211111133131211113313331333131211111211111323223313232133   >>      C31231211111133131211113313331333131211111211111323223313232132   >>