#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 *fats = head;
    Node *slow = head;
    
    while(fast != NULL && fast->next != NULL){
        slow = slow->next;
        fast = fast->next->next;
    }
    printf("%d", slow->data);
    
    /*struct node *itr;
    for(itr=head; itr!=NULL; itr=itr->next){
    printf("%d ", itr->data);
    }*/
}

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