#include <bits/stdc++.h>

#define pb push_back
#define f first
#define s second
#define pii pair<int, int>
#define mp make_pair
 
using namespace std;
 
const int MAX = 1e5 + 5;

long long v[MAX], n;

int main() {

	cin >> n;
	for (int i = 1; i <= n; i++)
		cin >> v[i];

	if (n < 19) {
		cout << 0;
		return 0;
	}

	int cnt = 0;
	for (int l = 1, r = 19; r <= n; l++, r++) {
		bool ok = true;
		for (int i = 0; i <= 8; i++) 
			if (v[i + l] >= v[i + 1 + l]) {
				ok = false;
				break;
			}

		for (int i = 9; i < 18; i++) 
			if (v[i + l] <= v[i + l + 1]) {
				ok = false;
				break;
			}

		if (ok)
			cnt++;
	}
	cout << cnt;
	return 0;
}