#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 h,w;
  cin >> h >> w;
  vector<string> s(h);
  cin >> s;
  vvvi dp(h,vvi(w,vi(h+w+1)));
  dp[0][0][1] = 1;
  rep(i,h)rep(j,w)rep(k,h+w+1){
    if(s[i][j] == '#' || !dp[i][j][k])continue;
    if(i != h-1 && s[i+1][j] != '#'){
      int nk = k + (s[i+1][j] == 'o' ? 1 : -1);
      if(nk >= 0)dp[i+1][j][nk] += dp[i][j][k];
    }
    if(j != w-1 && s[i][j+1] != '#'){
      int nk = k + (s[i][j+1] == 'o' ? 1 : -1);
      if(nk >= 0)dp[i][j+1][nk] += dp[i][j][k];
    }
  }
  ll res = 0;
  rep(i,h+w+1)res += dp[h-1][w-1][i];
  cout << res << "\n";
  

  return 0;
}