C31231211111133131211113313331333132213331312312111133132233313231   >>    C3123121111113313121111331333133313221333131231211113313223331323   <<    C31231211111133131211113313331333132213331312312111133132233313233   >>      C31231211111133131211113313331333132213331312312111133132233313232   >>