How can I save MouseLook position in this script ?

 #pragma strict
 #pragma downcast
  
  import System.IO; 
  import System.Runtime.Serialization;   
  import System.Runtime.Serialization.Formatters.Binary;      
  import System.Collections.Generic;
  import System.Text ;
  
  class RP 
       
     {   
     var Rx:float;
     var Ry:float;
     var Rz:float;
     var CPx:float;
     var CPy:float;
     var CPz:float;
     var Px:float;   
     var Py:float;   
     var Pz:float;
     var prx:float;
     var pry:float;
     var prz:float;
     }   
  
     function Write() 
       
     { 
          
     var w: RP  = new RP();  
     w.Rx=Camera.main.transform.eulerAngles.x;
     w.Ry=Camera.main.transform.eulerAngles.y;
     w.Rz=Camera.main.transform.eulerAngles.z;
     w.CPx=Camera.main.transform.position.x;
     w.CPy=Camera.main.transform.position.y;
     w.CPz=Camera.main.transform.position.z;
     w.Px=transform.position.x;   
     w.Py=transform.position.y;   
     w.Pz=transform.position.z;
     w.prx=transform.eulerAngles.x;
     w.pry=transform.eulerAngles.y;
     w.prz=transform.eulerAngles.z;
                        
     var fs: FileStream  = new FileStream ("RP.xyz",FileMode.Create);   
     var bf: BinaryFormatter  = new BinaryFormatter();       
     bf.Serialize(fs, w);   
     fs.Close();   
     }   
  
     function Read() 
       
     {      
     var vf: IFormatter  = new BinaryFormatter();   
     var fs = new FileStream("RP.xyz", FileMode.Open, FileAccess.Read);   
     var w1: RP= vf.Deserialize(fs);
     transform.eulerAngles = new Vector3(w1.prx,w1.pry,w1.prz);
     Camera.main.transform.position=new Vector3(w1.CPx,w1.CPy,w1.CPz);
     Camera.main.transform.eulerAngles = new Vector3(w1.Rx,w1.Ry,w1.Rz);
     transform.position=new Vector3(w1.Px,w1.Py,w1.Pz);   
     fs.Close();   
     } 
  
     function LateUpdate()   
     {   
     if (Input.GetKey(KeyCode.F9))      
     {   
     Read();   
     }   
     if (Input.GetKey(KeyCode.F5))      
     {   
     Write();   
     }   
     }