#include<stdio.h>
#include<stdlib.h>
typedef struct node{
    int data;
    struct node *next;
}Node;
Node *head=NULL,*tail;
int count=0;
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 *temp=head;
    while(temp!=null){
        count++;
        temp=temp->next;
    }
    printf("%d",count);
}

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;
}