#include<bits/stdc++.h>
using namespace std;
int main(){
	int a[10]={},n,i=0,h=0;
	cin>>n;
	for(i=0;i<n;i++){
		cin>>a[i];
	}
	for(i=0;i<n;i++){
	
		if(a[i]>=90){
		h++;
		} 
	}
	cout<<h;

	return 0;
}

/**************************************************************
	Problem: 1423
	User: caiqiaoxi
	Language: C++
	Result: Accepted
	Time:7 ms
	Memory:2072 kb
****************************************************************/