C312312111111331312111133133313331331121111331323221211331122333131   >>    C31231211111133131211113313331333133112111133132322121133112233313   <<    C312312111111331312111133133313331331121111331323221211331122333133   >>      C312312111111331312111133133313331331121111331323221211331122333132   >>