#include <bits/stdc++.h>
#include <atcoder/all>
using namespace std;
using namespace atcoder;
#define rep(i, n) for(int i=0;i<(n);++i)
#define rep1(i, n) for(int i=1;i<=(n);i++)
#define ll long long
using mint = modint998244353;
using P = pair<ll,ll>;
using lb = long double;
using T = tuple<ll, ll, ll>;
#ifdef LOCAL
#  include <debug_print.hpp>
#  define dbg(...) debug_print::multi_print(#__VA_ARGS__, __VA_ARGS__)
#else
#  define dbg(...) (static_cast<void>(0))
#endif

ll dp[11][11][25];

int main()
{
    int h, w;
    cin >> h >> w;
    vector<string> a(h);
    rep(i,h) cin >> a[i];
    dp[0][0][1] = 1;
    rep(i,h)rep(j,w) {
      if(i+1<h){
        if(a[i+1][j]!='#') {
        for(int k=0;k<=h+w;k++){
          if(a[i+1][j]=='x' && k-1>=0) dp[i+1][j][k-1] += dp[i][j][k];
          else if(a[i+1][j]=='o') dp[i+1][j][k+1] += dp[i][j][k];
        }
        }
      }
      if(j+1<w){
        if(a[i][j+1]!='#') {
          for(int k=0;k<=h+w;k++){
            if(a[i][j+1]=='x' && k-1>=0) dp[i][j+1][k-1] += dp[i][j][k];
            else if(a[i][j+1]=='o') dp[i][j+1][k+1] += dp[i][j][k];
          }
        }
      }
      dbg(dp[i][j],i,j, a[i][j]); 
    }
    ll ans = 0;
    rep(i,h+w+1) ans += dp[h-1][w-1][i];
    cout << ans << endl;
    return 0;
}