#include <bits/stdc++.h>
using namespace std;
using ll = long long;

void fast_io() {
    cin.tie(nullptr);
    ios_base::sync_with_stdio(false);
}

int main(void) {
    fast_io();
    int n;
    cin >> n;
    vector<int> p(n);
    for (int i = 0; i < n; i++) {
        cin >> p[i];
    }
    int ans = 0;
    for (int i = 0; i < n - 1; i++) {
        int index = i + 1;
        for (int j = i + 1; j < n; j++) {
            if (p[j] < p[index]) {
                index = j;
            }
        }
        if (p[i] > p[index]) {
            swap(p[i], p[index]);
            ans++;
        }
    }
    cout << ans << endl;
    return 0;
}