#include <bits/stdc++.h>
using namespace std;

int main() {
	int a[20], height;
	long long count = 0;
	for (int i = 0; i < 10; i++) {
		cin >> a[i];
	}
	for (int i = 0; i < 10; i++) {
		a[i] += 30;
	}
	cin >> height;
	for (int i = 0; i < 10; i++) {
		if (a[i] <= height) {
			count++;
		}
	}
	cout << count;

	return 0;
}