#include <bits/stdc++.h>
#define all(a) a.begin(), a.end()
#define F first
#define S second
#define pb push_back
#define lv v+v
#define rv v+v+1
using namespace std;
using ll = long long;
using ld = long double;
using pll = pair <long long, long long>;
using pii = pair <int,int>;
using pld = pair <long double, long double>;
#pragma GCC optimize("unroll-loops")
#pragma GCC optimize("O3")
long long mod = 1e9 + 7;
const ll N = 1e6 + 10;
const ll M = 1e6 + 10;
const ll P = 311;
const ld EPS = 1e-7;
const ll block = 450;
const ll inf = 1e18;
ll n,a[N],pos[N],ans,t[N];
pll b[N];
void upd(ll k,ll val) {
while(k <= n) {
t[k] += val;
k += k & -k;
}
}
ll sum(ll k) {
ll tyla = 0;
while(k >= 1) {
tyla += t[k];
k -= k & -k;
}
return tyla;
}
int main() {
ios_base::sync_with_stdio(false);
cin.tie(nullptr);
cout.tie(nullptr);
ll _=1; //cin>>_;
while(_--) {
cin>>n;
for(ll i = 1; i<=n; i++) {
cin>>a[i];
}
set <ll> s;
s.insert(n+1);
ll pr = 0;
for(ll i = 1; i<=n; i++) {
ans++;
s.insert(a[i]);
//cout<<pr<<" "<<*s.upper_bound(a[i])<<"\n";
if((pr == *s.upper_bound(a[i]) || pr == a[i]) && a[i-1] <= a[i]) {
ans--;
}
pr = *s.upper_bound(a[i]);
}
cout<<ans-1;
}
return 0;
}
// equal, min, max, 1, random, build
/*
6
3 6 4 5 1 2
*/
