Description: Have a devil always use their own in a very concise and abstract words, no one can understand the document as the basic operation of the object, run-time for the importation of the first devil language rules contain the file name, the program read from the document and check whether the rules have to repeat the definition of the cycle definition (using the adjacency matrix of the depth-first traversal algorithm to determine), or for non-devil to define the elements of language, after checking the corresponding error prompted and asked to re-enter the file name, until the rules file rules entirely correct. Realize the translation function to function through the brackets and in accordance with the rules of substitution realize two parts.
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