func_code_string: #include<bits/stdc++.h>   using namespace std;   typedef long long ll;   //#define rep(i,a,b) for(int i=a;i<b;i++);   void solve(){    ll n;    cin>>n;    string s;    cin>>s;    vector<ll>v;    for(int i=0;i<n;i++){     if (s[i]== * ){      v.push_back(i);     }    }    if (v.size()<=1 or v.size()==n){     cout<<0<<endl;    }    else{    ll mid=v.size()/2;    ll ans=0;    for(int i=0;i<v.size();i++){     ans+=abs(v[i]-v[mid]);    }           if (v.size()%2==0){     ll t1=v.size()/2;     ll t2=v.size()/2-1;        ll d1=t1*(t1+1)/2;     ll d2=t2*(t2+1)/2;     ans-=(d1+d2);    }       else{     ll t1=v.size()/2;     ll d1=t1*(t1+1)/2;     ans-=(2*d1);    }       cout<<ans<<endl;   }   }   int main(){    int t=1;    cin>>t;    while(t--)    solve();   }   