const int dx[] = {0, 1};
const int dy[] = {1, 0};
ll f[11][11][21]{0};
char A[11][11]{};
int @H,@W;
rd(A(H)(W));
f[0][0][1] = 1;

rep(i, H) rep(j, W) {
	if(A[i][j] == '#') continue;
	rep(val, 21) {
		if(f[i][j][val] == 0) continue;
		rep(k, 2) {
			int nx = i + dx[k], ny = j + dy[k];
			if(nx >= 0 && nx < H && ny >= 0 && ny < W && A[nx][ny] != '#') {
				int nval = val + (A[nx][ny] == 'o' ? 1 : -1);
				if(nval < 0) continue;
				f[nx][ny][nval] += f[i][j][val];
			}
		}
	}
}

ll ans = 0;
rep(val, 21) ans += f[H - 1][W - 1][val];
wt(ans);