Observe the program segment given below carefully and fill the blanks marked as Statement 1 and Statement 2 using tellg() and seekp() functions for performing the required task. 

#include<fstream.h>
class Client 
{
    long Cno; char Name[20], Email[30];
public:
    //Function to allow user to enter the Cno, Name, Email
    void Enter();
    //Function to allow user to enter (modify) Email
    void modify();
    long ReturnCno() (return Cno;)
};
void ChangeEmail()
{
     Client C;
     fstream F;
     F.open("INFO.DAT", ios::binary|ios::out);
     long Cnoc;   // Client's no. whose Email needs to be changed
     cin>>Cnoc;
     while(F.read((char*)&C, sizeof(C)))
     {
         if(Cnoc == C.ReturnCno())
         {
             C.Modify();
                       // Statement 1
             int Pos = _________  // To find the current position of file 
                       // pointer

                       // Statement 2
            _____________ //to move the file pointer to write the modified 
                         // record back onto the file for the desired Cnoc
              F.write((char*)&C, sizeof(C));
         }
     }
F.close();
}