// editor3
#include<stdio.h>
#include<stdlib.h>

typedef struct node{
    int data;
    struct node *next;
}Node;
Node *head,*tail;
void creation(int num){
    Node *newnode = (Node*) malloc (1*sizeof(Node));
    newnode->data = num;
    newnode->next = NULL;
    if(head==NULL){
        head = newnode;
        tail = newnode;
    }else{
        tail->next = newnode;
        newnode = tail;
        }
}

void display(){
    Node *itr,*itr1;
    Node *temp = head;
    while(temp->next->next!=NULL){
        printf("%d ",&temp);
        temp = temp->next->next;
    }
}
int main(){
    int size,num,itr;
    scanf("%d",&size);
    for(itr = 1;itr<size;itr++){
        scanf("%d",&num);
        if(num<0){
            printf("%d",num);
            return 0;
        }
        creation(num);
    }
    display();
    return 0;
}