C312312111111331312111133133313331331121111332321333132322331311   >>    C31231211111133131211113313331333133112111133232133313232233131   <<    C312312111111331312111133133313331331121111332321333132322331313   >>      C312312111111331312111133133313331331121111332321333132322331312   >>