#include "iostream"

 #include "string"

 using namespace std;

 typedef struct node{

     string data;

     struct node *next;

     node(string str){

         data=str;

         next=NULL;

     }

 }Node;

     Node *head=new node("hfirst");

     Node *back=new node("bfirst");

     Node *current=NULL;

     Node *pre=head;

 void add(string str){

     Node *temp;

     if(back->data=="bfirst")

         temp=new Node(str);

     else{

         temp=back->next;

         back->next=temp->next;

         temp->data=str;

         temp->next=NULL;

     }

     temp->next=head->next;

     head->next=temp;

     current=temp;

 }

 void move(int p){

     int i=;

     for(;i<p;i++){

         pre=current;

         if(current==NULL){

             cout<<"worng!!!"<<endl;

             current=head->next;

             pre=head;

             break;

         }

         else

             current=current->next;

     }

 }

 void del(int i){

     Node *temp=current;

     Node*tp;

     while(i!=&&current!=NULL){

         tp=current;

         current=current->next;

         i--;

     }

     if(current==NULL){

         back->next=pre->next;

         pre->next=NULL;

         pre=head;

         current=head->next;

     }

     else{

         pre->next=current;

         tp->next=NULL;

         temp->next=back->next;

         back->next=temp;

     }

 }

 void _print(){

     cout<<current->data;

 }

 void main(){

     string choice,str;

     int i;

     while(){

     cin>>choice;

         if (choice==("ADD")){cin>>str;add(str);}

         if (choice==("MOVE")){cin>>i;move(i);}

         if (choice==("DEL")){cin>>i;del(i);}

         if (choice==("PRINT"))_print();

     }

     getchar();

 }