C31231211111133131211113313331333132233133313331312111133232223311   >>    C3123121111113313121111331333133313223313331333131211113323222331   <<    C31231211111133131211113313331333132233133313331312111133232223313   >>      C31231211111133131211113313331333132233133313331312111133232223312   >>