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

typedef pair<int, int> pii;

int main()
{
    cin.tie(0);
    iostream::sync_with_stdio(0);
    int n;
    cin >> n;
    
    vector<pii> A;
    vector<int> B;
    int x;
    
    for(int i = 0; i < n; i++){
        cin >> x;
        if(x == -1){
            B.push_back(i);
        }
        else{
            A.push_back({x, i});
        }
    }
    sort(A.begin(), A.end());
    sort(B.begin(), B.end(), greater<int>());
    
    vector<int> mo(n);
    int akt = 1;
    for(pii x : A){
        mo[x.second] = akt++;
    }
    for(int x : B){
        mo[x] = akt++;
    }
    
    for(int x : mo){
        cout << x << " ";
    }
    cout << "\n";

    
    return 0;
}