//nem engedi bekuldeni
#include <bits/stdc++.h>
using namespace std;

void solve() {
    int n;
    cin >> n;

    unordered_map<int, int> m;

    for (int i = 0; i < n; i++) {
        int a;
        cin >> a;

        m[a] = i + 1;
    }

    int l = n;

    for (auto& i : m) {
        l = min(l, i.second);
    }

    cout << l << endl;
    return;
}

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    int t = 1;
    //cin >> t;

    while (t--) {
        solve();
    }

    return 0;
}