#include<stdio.h>
#include<stdlib.h>
void create(int num);

typedef struct node{
    int data;
    struct node *next;
}node;
*node,*head=NULL,*tail;

int main()
{
    int i,size,num;
    scanf("%d",&size);
    if(size=0){
        printf("Invalid input");
        return 0;
    }
    
    for(i=0;i<size;i++)
    {
        scan("%d",&num);
        create(num);
    }
    display();
}

void create(int num)
{
    newnode=(node*)malloc(sizeof(node));
    newnode->next=NULL;
    newnode->data=num;
    if(head == NULL)
    {
        head = newnode;
        tail = newnode;
    }
    else{
        tail->next=newnode;
        tail=newnode;
    }
}

void display()
{
    node *temp;
    for(temp=head->next;temp=NULL;temp=temp->next);
    printf("%d"temp->data);
}