// editor1
#include<stdio.h>
#include<stdio.h>
typedef struct node{
    int data;
    struct node *next;
    struct node *prev;
}node; 
node *head = NULL, *tail, *iter;

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 *next->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();

    }
}