#include<iostream>
using namespace std;
int main(){
	int n,i,s=0;
	cin>>n;
	int a[n];
	for(i=0;i<n;i++){
		cin>>a[i];
		if(a[i]>90||a[i]==90){
			s++;
		}
	}
	cout<<s;
}
/**************************************************************
	Problem: 1423
	User: zouliangyin
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2072 kb
****************************************************************/