#include<bits/stdc++.h>
using namespace std;
int a[100];
struct abab{
	int num,wh;
}minn;
int main(){
	int n,k;
	cin>>n;
	for(int i=1;i<=n;i++){
		cin>>a[i];
	}
	int ans=0;
	for(int i=1;i<=n;i++){
		minn.num=n+1;
		for(int j=i;j<=n;j++){
			if(a[j]<minn.num){
				minn.num=a[j];
				minn.wh=j;
			}
		}
		if(minn.wh==i){
			continue;
		}
		ans++;
		a[minn.wh]=a[i];
	}
	cout<<ans<<"\n";
}