C312312111111331312111133133313331331121111331323221211113313331211113313223221   >>    C31231211111133131211113313331333133112111133132322121111331333121111331322322   <<    C312312111111331312111133133313331331121111331323221211113313331211113313223223   >>      C312312111111331312111133133313331331121111331323221211113313331211113313223222   >>