#include <iostream>
#include <vector>

using namespace std;

int main()
{
    int n;
    vector <int> v;
    cin >> n;
    v.resize(n);
    vector <long> elof;
    elof.resize(100000000000);
    for(int i = 0 ; i < n; i ++){
        cin >> v[i];
        elof[v[i]] ++;
    }
    bool b;
    int i = 0, j, db = 1;
    while(i < n){
        b = 0;
        j = i + 1;
        if(elof[v[i]] > 1){
            while(j < n and !b){
                if(v[i] == v[j])
                    b = 1;
                j ++;
            }
        }
        else{
            break;
        }
        db ++;
        i ++;
    }
    cout << db;
    return 0;
}