What will be the output of the following program?

 #include 
 struct GateArray 
 {   
     int arr[5];    
     public:    
     void GateFunction();    
     void Display();
 }; 
 void GateArray::GateFunction()
 {     
     static int i = 0, j = 4;  
     i++;   
     j--;    
     if(j > 0)      
         GateFunction();     
    int tmp = arr[i];    
    arr[i]  = arr[j];     
    arr[j]  = tmp;  
    i--;   
    j++; 
 }
 void GateArray::Display()
 {  
    for(int i = 0; i 5; i++)         
      cout" ";
 } 
 int main() 
 {   
     GateArray objArr = {{5, 6, 3, 9, 0}};     
     objArr.GateFunction();     
     objArr.Display(); 
     return 0;