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

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發送短信 : Orientation of the plane of occlusion