C312312111111331312111133133313331331121111331323311331322122321   >>    C31231211111133131211113313331333133112111133132331133132212232   <<    C312312111111331312111133133313331331121111331323311331322122323   >>      C312312111111331312111133133313331331121111331323311331322122322   >>