What will be the output of the following program?

  #include 
  class Number
  {    
      int Num;     
      public:     
      Number(int x = 0)    
      {          
          Num = x;  
      }  
      void Display(void)  
      {         
         cout       void Modify(); 
    }; 
    void Number::Modify() 
    {   
       int Dec;   
       Dec = Num % 13;     
       Num = Num / 13;               
       
          if( Num  > 0 ) Modify()   ;     
          if(Dec == 10) cout"A" ;   
       else if(Dec == 11) cout"B" ;     
       else if(Dec == 12) cout"C" ;   
       else if(Dec == 13) cout"D" ;  
       else               cout
}
int main() 
{    
     Number objNum(130);   
     objNum.Modify();     
     return 0;  
}