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