func_code_string: #include <bits/stdc++.h>   using namespace std;   long long n, i, j;   vector<long long> v, Ans;   long long adj[504][504], dist[504][504];   bool visit[1000000];   int main() {     ios_base::sync_with_stdio(false);     cin.tie(NULL);     cin >> n;     for (i = 1; i <= n; i++) {       for (j = 1; j <= n; j++) {         cin >> adj[i][j];         dist[i][j] = adj[i][j];       }     }     long long x;     for (i = 1; i <= n; i++) cin >> x, v.push_back(x);     reverse(v.begin(), v.end());     int f = 0;     for (auto k : v) {       f++;       long long ans = 0;       for (long long i = 0; i < n; i++) {         for (long long j = 0; j < n; j++)           dist[v[i]][v[j]] = min(dist[v[i]][v[j]], dist[v[i]][k] + dist[k][v[j]]);       }       for (i = 0; i < f; i++)         for (j = 0; j < f; j++) ans += dist[v[i]][v[j]];       Ans.push_back(ans);     }     reverse(Ans.begin(), Ans.end());     for (auto i : Ans) cout << i <<    ;   }   