#include <stdio.h>
#include <stdlib.h>
typedef struct Node{
    int rollNumber;
    struct Node*next;
}Node;
Node* createNode(int rollNumber){
    Node*newNode=(Node*)malloc(sizeof(Node));
    if(!newNode){
        printf("Memory error\n");
        return NULL;
    }
    newNode->rollNumber=rollNumber;
    newNode->next=NULL;
    return newNode;
}
void insert(Node**head,int rollNumber){
    Node*newNode=createNode(rollNumber);
    if(*head==NULL){
        *head=newNode;
    }else{
        Node*temp=*head;
        while(temp->next){
            temp=temp->next;
        }
        temp->next=newNode;
    }
}
void delete(Node**head,int toDelete){
    Node*temp=*head;
    *head=(*head)->next;
    free(temp);
    return;
}
Node*temp=*head;
while (temp->next){
     if(temp->next->rollNumber==toDelete){
         Node*nodeToDelete=temp->next;
         temp->next=temp->next->next;
         free(nodeToDelete);
         return;
     }
     temp=temp->next;
}
printf("Not Found\n");
}
void printList(Node*head){
    if(head==NULL){
        return;
    }
    while(head){
        printf("%d",head->rollNumber);
        head=head->next;
    }
    printf("\n");
}
int main(){
    int n;
    scanf("%d",&n);
    Node*head=NULL;
    for(int i=0;i<n;i++){
        int rollNumber;
        scanf("%d",&rollNumber);
        insert(&head,rollNumber);
    }
    int toDelete;
    scanf("%d",&toDelete);
    delete(&head,toDelete);
    printList(head);
    return 0;
}