#include<bits/stdc++.h>
// #include<atcoder/all>
// #include<boost/multiprecision/cpp_int.hpp>

using namespace std;
// using namespace atcoder;
// using bint = boost::multiprecision::cpp_int;
using ll = long long;
using ull = unsigned long long;
using P = pair<int,int>;
using vi = vector<ll>;
using vvi = vector<vi>;
using vvvi = vector<vvi>;
#define rep(i,n) for(ll i = 0;i < (ll)n;i++)
#define ALL(x) (x).begin(),(x).end()
#define sz(c) ((ll)(c).size())
#define LB(A,x) (int)(lower_bound(A.begin(),A.end(),x)-A.begin())
// #define MOD 1000000007
#define MOD 998244353
template<typename T>using min_priority_queue=priority_queue<T,vector<T>,greater<T>>;
template<typename T>ostream&operator<<(ostream&os,vector<T>&v){for(int i = 0;i < v.size();i++)os<<v[i]<<(i+1!=v.size()?" ":"");return os;}
template<typename T>istream&operator>>(istream&is,vector<T>&v){for(T&in:v)is>>in;return is;}
template<typename T1,typename T2>ostream&operator<<(ostream&os,pair<T1,T2>&p){os<<p.first<<" "<<p.second;return os;}
template<typename T1,typename T2>istream&operator>>(istream&is,pair<T1,T2>&p){is>>p.first>>p.second;return is;}



int main(){
  
  ios_base::sync_with_stdio(0), cin.tie(0);
  int n;
  cin >> n;
  vector<string> s(n);
  cin >> s;
  int res = 0;
  rep(i,n)rep(j,n){
    if(s[i][j] != '.')continue;
    auto f = [&](int oi,int oj,int dy,int dx){
      int cnt = 0;
      for(int k = -n;k <= n;k++){
        int ni = dy*k + oi,nj = dx*k + oj;
        if(ni < 0 || ni >= n || nj < 0 || nj >= n)continue;
        if(s[ni][nj] == 'A')cnt++;
      }
      return (cnt == n);
    };
    s[i][j] = 'A';
    res += f(i,j,0,1);
    res += f(i,j,1,0);
    res += f(i,j,1,1);
    res += f(i,j,-1,1);
    s[i][j] = '.';
  }
  cout << res << "\n";
  

  return 0;
}