C312312111111331312111133133313331331121111331323221211113313331323223323311   >>    C31231211111133131211113313331333133112111133132322121111331333132322332331   <<    C312312111111331312111133133313331331121111331323221211113313331323223323313   >>      C312312111111331312111133133313331331121111331323221211113313331323223323312   >>