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    #include <iostream>
using namespace std;
//CODE FOR SELF CREATING STRUCTURE
struct Node{
    int id;
    Node prev;
    Node next;
    int data;
};
/******************************************************************************/
//CREATING CLASS OR FINGER PRINT OF OBJECT
 class ListCircularDouble{
public:


//CREATING GOLBAL POINTER FOR OBJECT;
 Node *start, *previous, *node;


//ID FOR CREATING ARRAY LIKE BEHAVIOR
     int id=0;
//SOME IMPORT INITIALIZTION WHILE CALLING CONSTRUCTOR

     ListCircularDouble(int data){
      node=new Node;
      start=node;
     previous=node;

     previous-&gt;prev=node;
     previous-&gt;next=node;
     node-&gt;data=data;
     start-&gt;id=id;

     cout&lt;&lt;&quot;id Number &quot;&lt;&lt;id&lt;&lt;&quot;=&quot;&lt;&lt;data&lt;&lt;endl;


 }



//ADD ELEMENT IN START
    void addAtStart(int data){
       cout<<"id Number "<<id+1<<"="<<data<<endl;
        id=id+1;
        cout<<id<<endl;
         node=new Node;
         node->data=data;
         node->id=id;
         previous->next=node;
         node->prev= previous;
         start->prev=node;
         node->next=start;
         previous=node;
};



//DISPLAY LIST

    void display(){
        Node *ptr=start;
       do {
    cout&lt;&lt;ptr-&gt;id&lt;&lt;&quot;-&gt; &quot;&lt;&lt;ptr-&gt;data&lt;&lt;&quot;,  &quot;;          
    ptr=ptr-&gt;next;


    }  while(ptr!=start);
    cout&lt;&lt;endl;

};    





//ADD MULTIPLE ELEMENT WHERE N IS NUMBER OF ELEMENT

  void createListInt(int n){
    cout&lt;&lt; &quot;Add &quot;&lt;&lt;n&lt;&lt;&quot; Elements&quot;&lt;&lt;endl;
    int data;

    for ( int i = 0; i &lt; n; i ++ ) {
        cin&gt;&gt;data;
       this-&gt;addAtEnd (data);

    }     
};






};
int main(){
//Create At least 1 element By creating OBj

ListCircularDouble list1(2);
//ADD ELEMNTS
list1.addAtStatt (20);
list1.addAtStart (30);
list1.display();
}