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|  __ \\   \ \\/ //  | \| ||   / _ \\   /  ___|| 
| |  \ ||   \ ` //   |  ' ||  | / \ || | // __   
| |__/ ||    | ||    | .  ||  | \_/ || | \\_\ || 
|_____//     |_||    |_|\_||   \___//   \____//  
 -----`      `-`'    `-` -`    `---`     `---`

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發送短信 : The Variance Ratio Test with Stable Paretian Errors