// editor2
#include<stdio.h>
#include<stdlib.h>
typedef struct node{
    int data;
    struct node*next;
    struct node*prev;
    
}node;
node*head=NULL,*tail,*iter;
node*newnode=(node*)malloc(1*sizeof(node));
newnode->data=num;
newnode->next=NULL;
if (head==NULL){
    head=newnode;
    tail=newnode;
}

}
void display(){
    node*iter;
    for(iter=head;iter!=NULL;iter=iter->next){
        printf("%d ",iter->data);
        }
}
int main(){
    int size,num,itr,val;
    scanf("%d",&size);
    if(size<0){
        printf("Invalid input");
        for(itr=1;itr<=size;i++){
            scanf("%d",&num);
            create(num);
        }
        display();
        return 0;
}