Untitled

// Online C++ compiler to run C++ program online
#include <iostream>
#include <bits/stdc++.h>

using namespace std;

int maxWeightCell(int n, vector<int> edge){
    vector<int> cnt(n,0);
    for(int i=0; i<n; i++){
        if(edge[i] != -1)
            cnt[edge[i]] += i;
    }
    int ans = -1;
    int maxi = INT_MIN;
    for(int i=0; i<n; i++){
        if(maxi <= cnt[i]){
            maxi = cnt[i];
            ans = i;
        }
    }
    return ans;
  }
  
int main()
{
    int n;
    cin >> n;

    vector<int> edges(n);
    for (int i = 0; i < n; ++i)
    {
        cin >> edges[i];
    }
  
    cout<<maxWeightCell(n, edges)<<endl;
    
    return 0;
}