C31231211111133131211113313331333132233133313331312111133232211111   >>    C3123121111113313121111331333133313223313331333131211113323221111   <<    C31231211111133131211113313331333132233133313331312111133232211113   >>      C31231211111133131211113313331333132233133313331312111133232211112   >>