#include <bits/stdc++.h>
using namespace std;
//#include <atcoder/all>
//using namespace atcoder;
using ll=long long;
using Graph=vector<vector<int>>;
#define MAX 50
#define MOD 1000000007
#define INF 1000000000

int main(){
  int N;
  cin>>N;
  vector<pair<int,int>> A(N);
  for(int i=0;i<N;i++){
    cin>>A[i].first;
    A[i].second=i;
  }
  sort(A.begin(),A.end());

  vector<bool> opend(N+1,false);
  int ans=0;
  for(int i=0;i<N;i++){
    if(opend[A[i].second+1]==false){
      ans++;
      opend[A[i].second]=true;
    }
  }
  cout<<ans<<endl;
}