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

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

Node *head = NULL, *tail;

void create(){
    Node *newNode =(Node*) malloc (1 * sizeof(Node));
    newNode->data=num;
    newNode->next=NULL;
    
    if(head == NULL){
        head=newNode;
        tail=newNode;
    }
    else{
        tail->next=nextNode;
        tail=newNode;
    }
}
void display(){
    Node *itr;
    for(itr=head;itr!=NULL;itr=itr->next){
        printf("%d",itr->next);
    }
}
    
    
int main(){
    int N,itr,num;
    scanf("%d",&size);
    if(N<0){
        printf("Invalid input");
        return 0;
    }
    for(itr=0;itr<N;itr++){
        scanf("%d",&num)
        create(num);
        }
    display()
    return 0;
    }
}