#include<stdio.h>
#include<stdlib>
typedef struct node{
    int data;
    struct node *next;
}Node;
Node *head =NULL,*tail;
void create(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;
        tail = newnode;
    }
}
void display(){
    struct node *itr;
    for(itr=head; itr !=NULL; itr=itr->next){
        printf("%d",itr->data);
    }
}
int main(){
    int size,num,itr;
    scanf("%d",&size);
    if(size<=0){
        printf("Node not found");
        return 0;
    }
    for(itr=1; itr<=size; itr++){
        scanf("%d",&num);
        create(num);
    }
    display();
    return 0;
}