func_code_string: #include <bits/stdc++.h>   #pragma GCC optimize( Ofast )   #pragma GCC target( avx,avx2,fma )   #pragma GCC optimization( unroll-loops )   using namespace std;   void solve() {     long long n;     cin >> n;     vector<long long> a(n);     for (auto &x : a) cin >> x;     if (*min_element(a.begin(), a.end()) == 1) {       cout << n + 1 <<    ;       for (long long i = 1; i <= n; i++) cout << i <<    ;     } else {       long long k;       for (long long i = n - 1; i >= 0; i--) {         if (!a[i]) {           k = i;           break;         }       }       for (long long i = 0; i <= k; i++) cout << i + 1 <<    ;       cout << n + 1 <<    ;       for (long long i = k + 1; i <= n - 1; i++) cout << i + 1 <<    ;     }     cout <<   n ;   }   signed main() {     ios_base::sync_with_stdio(false);     cin.tie(NULL);     cout.tie(NULL);     long long t;     cin >> t;     while (t--) solve();     return 0;   }   