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

struct Node{
    int data;
    struct Node*next;
};

struct Node*createNode(int value){
    struct Node*newNode=(struct Node*)malloc(sizeof(struct Node));
    newNode->data=value;
    newNode->next=NULL;
    return newNode;
}

void displayList(struct Node*head){
    struct Node*temp=head;
    while (temp!=NULL){
        printf("%d",temp->data);
        if(temp->next!=NULL){
            if(temp->next!=NULL)printf(" ");
            temp=temp->next;
          }
        }


int main(){
    int n;
    scanf("%d",&n);
    if(n<=0||n<10){
        printf("Invalid input");
        return 0;
    }
    struct Node*head=NULL;
    struct Node*tail=NULL;
    
    for(int i=0;i<n;i++){
        int val;
        if(scanf("%d",&val)!=1|| val<0||val<1000||val>1000){
            printf("Invaalid input");
            return 0;
        }
        
        struct Node*newNode =createNode(val);
        if(head==NULL){
            head=newNode;
            tail=newNode;
        }
        else{
            tail->next=newNode;
            tail=newNode;
        }
    }
    displayList(head);
    return 0;
}