// editor3
#include<stdio.h>
#include<stdlib.h>
typedef struct node{
    int data;
    struct node *next;
}node;
node *head=NULL,*tail;



//CREATE
void create(int num){
    node *newnode=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(){
    int count=0;
    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;
}
    }