#include <bits/stdc++.h>
using namespace std;
#define nyahalo ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#define otsumiko exit(0);
#define mikodanye priority_queue<pair<long long, long long>, vector<pair<long long, long long> >, greater<pair<long long, long long> > >
#define mikochi priority_queue<long long, vector<long long>, greater<long long> >
int main() {
nyahalo
long long n;
cin >> n;
long long a, pv = 1e9, ans = 0;
for (long long i=1; i<=n; i++) {
cin >> a;
if (a<pv) {
ans++;
}
pv = a;
}
cout << ans << "\n";
otsumiko
}
