#include<stdio.h>
#include<stdlib.h>
typedef struct node{
    int data;
    struct node*next;
}Node;
Node *head=NULL,*tail;
void create(int num){
    Node *newnode=(Node*)malloc(sizeof(Node));
    newnode->data=num;
    newnode->next=NULL;
    if(head==NULL){
        head=newnode;
        tail=newnode;
    }
    else{
        tail->next=newnode;
        tail=newnode;
    }
}
void display(){
    Node*itr;
    for(itr=0;itr!=head;itr=itr->next)
    {
        printf("%d",&itr->data);
    }
}
int main(){
    int num,size;
    scanf("%d",&size);
    for(int i=0;i<size;i++)
    {
        scanf("%d",&sum);
        create(num);
        
    }
    display();
    return 0;
}