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

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發送短信 : Viscosity iteration method in CAT(0) spaces without the nice projection property