#include<stdio.h>
#include<stdlib.h>
typedef struct node{
    int data;
    struct node *next;
    
}nd;
nd *head=NULL,*tail;
void create(int num){
    nd *newnode=(nd*)malloc(1*sizeof(nd));
    newnode->data=num;
    newnode->next=NULL;
    if(head==NULL){
     newnode=head;
     newnode=tail;
    }else{
        tail->next=newnode;
        tail=newnode;
    }
}
void display(){
    int count=0;
    nd *itr;
    nd *temp=head;
    for(itr=0;itr!=NULL;itr=itr->next){
        while(temp!=NULL){
           count++;
           temp=temp->next;
           printf("%d",count);
        }
    }
}

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