#include <bits/stdc++.h>
#define int long long
using namespace std;
int n,s[10010],ans,k=1;
signed main(){
	std::ios::sync_with_stdio(0);
	cin>>n;
	for(int i=1;i<=n;i++)
		cin>>s[i];
	for(int i=1;i<=n;i=k){
		k=i+1;
		if(s[i]<s[i-1]){
			for(int j=i+1;j<=n;j++)
				if(s[j]>s[i]){
					k=j;
					ans++;
					break;
				}
		}
	}
	cout<<ans;
	return 0;
}