func_code_string: #include <bits/stdc++.h>   using namespace std;   int n, a[200003];   vector<int> v;   int main() {     cin >> n;     for (int i = 2; i <= n; i++) cin >> a[i];     v.push_back(n);     int j = n;     while (j != 1) {       v.push_back(a[j]);       j = a[j];     }     reverse(v.begin(), v.end());     for (int i = 0; i < v.size(); i++) cout << v[i] <<    ;   }   