func_code_string: #include<bits/stdc++.h>   #define ll long long   using namespace std;      void solve(int tc) {    int n;    cin >> n;    string s;    cin >> s;    vector<int> pos;    for (int i = 0  ; i < n ; i++) {     char ch = s[i];     if (ch ==  * ) pos.push_back(i);    }       int sz = (int)pos.size();    if (sz == 0) {     cout << 0 << endl;     return;    }       int median = sz / 2;    ll ans = 0;    for (int i = median - 1 , j = pos[median] - 1 ; i >= 0 ; i-- , j--) {     ans += abs(pos[i] - j);    }       for (int i = median + 1 , j = pos[median] + 1 ; i < sz ; i++ , j++) {     ans += abs(pos[i] - j);    }       cout << ans << endl;   }      int main()   {    int t;    cin >> t;       while (t--)     solve(0);   }