#include <bits/stdc++.h>
// clang-format off
using namespace std; using ll=long long; using ull=unsigned long long; using pll=pair<ll,ll>; const ll INF=4e18;
void print0(){}; template<typename H,typename... T> void print0(H h,T... t){cout<<h;print0(t...);}
void print1(){print0("\n");}; template<typename H,typename... T>void print1(H h,T... t){print0(h);if(sizeof...(T)>0)print0(" ");print1(t...);}
void ioinit() { cout<<fixed<<setprecision(15); cerr<<fixed<<setprecision(6); ios_base::sync_with_stdio(0); cin.tie(0); }
#define debug1(a) { cerr<<#a<<":"<<a<<endl; }
#define debug2(a,b) { cerr<<#a<<":"<<a<<" "<<#b<<":"<<b<<endl; }
#define debug3(a,b,c) { cerr<<#a<<":"<<a<<" "<<#b<<":"<<b<<" "<<#c<<":"<<c<<endl; }
#define debug4(a,b,c,d) { cerr<<#a<<":"<<a<<" "<<#b<<":"<<b<<" "<<#c<<":"<<c<<" "<<#d<<":"<<d<<endl; }
// clang-format on

char tbl[10][10];
ll H, W;
ll dp(ll i, ll j, ll jewel) {
    // static ll dp[11][11][2];
    // static bool done[11][11][2];
    if (jewel < 0) return 0;
    if (i == H - 1 && j == W - 1) {
        return 1;
    }
    ll ans = 0;
    if (i + 1 < H && tbl[i + 1][j] != '#') {
        ll wadd = 0;
        if (tbl[i + 1][j] == 'x') {
            wadd = -1;
        }
        if (tbl[i + 1][j] == 'o') {
            wadd = 1;
        }
        ans += dp(i + 1, j, jewel + wadd);
    }
    if (j + 1 < W && tbl[i][j + 1] != '#') {
        ll wadd = 0;
        if (tbl[i][j + 1] == 'x') {
            wadd = -1;
        }
        if (tbl[i][j + 1] == 'o') {
            wadd = 1;
        }
        ans += dp(i, j + 1, jewel + wadd);
    }
    return ans;
}
int main() {
    ioinit();
    cin >> H >> W;
    for (ll r = 0; r < H; r++) {
        for (ll c = 0; c < W; c++) {
            cin >> tbl[r][c];
        }
    }
    ll ini = 0;
    if (tbl[0][0] == 'o') {
        ini = 1;
    }
    if (tbl[0][0] == 'x') {
        ini = -1;
    }
    print1(dp(0, 0, ini));
    return 0;
}