#include <iostream>
using namespace std;
int main()
{
	int n, m; int r = 0;
    cin >> n;
	for (int i = 0; i < n; i++)
	{
		cin >> m;
		if (m >= 1982)
		{
			r++;
		}
	}
	cout << r << endl;
	return 0;
}