#include <cstdio>
#include <algorithm>
#include <vector>

#define f first
#define s second

using namespace std;

int v[100010];

int main ()
{
 //   freopen ("file.in", "r", stdin);

    int n;
    scanf ("%d", &n);

    v[0] = 2000000000;
    int nr = 1, rez = 0;
    for (int i = 1; i <= n; ++i)
    {
        scanf ("%d", &v[i]);
        if (nr < 10 && v[i - 1] < v[i]) ++nr;
        else if (nr >= 10 && v[i - 1] > v[i]) ++nr;
        else nr = 1;

        if (nr == 19)
        {
            ++rez;
            nr = 1;
        }
    }

    printf ("%d\n", rez);

    return 0;
}