C31231211111133131211113313331333133313332233132313331322133313122321311   >>    C3123121111113313121111331333133313331333223313231333132213331312232131   <<    C31231211111133131211113313331333133313332233132313331322133313122321313   >>      C31231211111133131211113313331333133313332233132313331322133313122321312   >>