C312312111111331312111133133313331331121111331333133313221231323221   >>    C31231211111133131211113313331333133112111133133313331322123132322   <<    C312312111111331312111133133313331331121111331333133313221231323223   >>      C312312111111331312111133133313331331121111331333133313221231323222   >>