#include<bits/stdc++.h>
using namespace std;

#define rep(i,n) for(int i=0;i<(int)(n);i++)
#define ALL(v) v.begin(),v.end()
typedef long long ll;
template <class T> using V=vector<T>;
template <class T> using VV=V<V<T>>; //B(n,V<int>(n))

ll dp[11][11][22];
 
int main(){
  ios::sync_with_stdio(false);
  std::cin.tie(nullptr);
  
  int h,w;
  cin>>h>>w;
  V<string> A(h);
  rep(i,h) cin>>A[i];
  
  dp[0][0][1]=1;
  rep(i,h) rep(j,w) rep(k,h+w){
    if(A[i][j]=='#') continue;
    if(i<h-1 && A[i+1][j]=='o') dp[i+1][j][k+1]+=dp[i][j][k];
    if(i<h-1 && A[i+1][j]=='x' && k) dp[i+1][j][k-1]+=dp[i][j][k];
    if(j<w-1 && A[i][j+1]=='o') dp[i][j+1][k+1]+=dp[i][j][k];
    if(j<w-1 && A[i][j+1]=='x' && k) dp[i][j+1][k-1]+=dp[i][j][k];
  } 
  ll ans=0;
  rep(k,h+w) ans+=dp[h-1][w-1][k];
  cout<<ans<<endl;
    
  return 0;
}