#include<stdio.h>
#include<stdlib.h>
typedef struct node{
    int data;
    struct node *next;
    struct node *prev;
}Node;
Node *head=NULL,*tail;
Node *first,*second;
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{
        tail->next=newnode;
        tail=newnode;
    }
}
void display(){
    Node *itr;
    for(itr=head;itr!=NULL;itr=itr->next){
        printf("%d ",itr->data);
        
    }
}
void delete(int val){
    first=head;
    second=head->next;
    if(val==head->data){
        head=head->next;
    }
    else{
        while(second!=NULL){
            if(second->data==val){
                first->next=second->next;
                break;
            }
            first=first->next;
            second=second->next;
        }
        
    }
    
}
int main(){
    int size,itr,num,val;
    scanf("%d",&size);
    for(itr=1;itr<=size;itr++){
        scanf("%d",&num);
        create(num);}
        scanf("%d",&val);}
        delete(val);

    
}