// editor1
#include<stdio.h>
#include<stdlib.h>
typedef struct node{
    int data;
    struct node *next;
    struct node *prev;
}Node;

Node *head=NULL,*tall;

void create(int num){
    Node *newNode =(node*) malloc (1 *sizeof(Node));
    newNode->data =num;
    newNode->next =NULL;
    newNode->prev =NULL;
    if(head ==NULL){
        head =newNode;
        tail =newNode;
    }
    else{
        newNode->prev=tail;
        tail->next=newNode;
        tail =newNode;
    }
}

void deletion(int val){
    iter =head->next;
    if(head->data ==val){
        head =head->next;
        head->prev=NULL;
    }
    else if(tail->data==val)
        tail->prev->next=NULL;
    else{
        while(iter!=NULL){
            if(iter->data==val){
                iter->next->prev=iter->prev;
                iter->prev->next=iter->next;
                break;
            }
            iter =iter->next;
        }
    }
}
void display(){
    Node *itr;
    for(itr=head;itr!=NULL;itr=itr->next)
    printf("%d",itr->data);
}
int main(){
    int size,itr,num,val;
    scanf("%d"&size);
    for(itr=1;itr<size;itr++){
        scanf("%d",&num);
        create(num);
    }    
    scanf("%d",&val);
    deletion(val);
    if(iter==NULL){
        printf("node not found");
    }
    else{
        display();
        return 0;
    }
    }
}