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  ______    _____     ______    ______   __   __  
 /_   _//  |  ___||  /_____//  /_   _//  \ \\/ // 
 `-| |,-   | ||__    `____ `    -| ||-    \   //  
   | ||    | ||__    /___//     _| ||_    / . \\  
   |_||    |_____||  `__ `     /_____//  /_//\_\\ 
   `-`'    `-----`   /_//      `-----`   `-`  --` 
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Text this: Network performance analysis : using the J programming language