import java.io.*;
import java.util.*;
import java.util.function.*;
import java.util.stream.*;

public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner();
        int h = sc.nextInt();
        int w = sc.nextInt();
        char[][] field = new char[h][];
        List<List<Map<Integer, Integer>>> dp = new ArrayList<>();
        for (int i = 0; i < h; i++) {
            field[i] = sc.next().toCharArray();
            dp.add(new ArrayList<>());
            for (int j = 0; j < w; j++) {
                dp.get(i).add(new HashMap<>());
            }
        }
        dp.get(0).get(0).put(1, 1);
        for (int i = 0; i < h; i++) {
            for (int j = 0; j < w; j++) {
                if ((i == 0 && j == 0) || field[i][j] == '#') {
                    continue;
                }
                if (i > 0) {
                    for (Map.Entry<Integer, Integer> entry : dp.get(i - 1).get(j).entrySet()) {
                        int key = entry.getKey();
                        int value = entry.getValue();
                        if (field[i][j] == 'o') {
                            dp.get(i).get(j).put(key + 1, dp.get(i).get(j).getOrDefault(key + 1, 0) + value);
                        } else if (key > 0) {
                            dp.get(i).get(j).put(key - 1, dp.get(i).get(j).getOrDefault(key - 1, 0) + value);
                        }
                    }
                }
                if (j > 0) {
                    for (Map.Entry<Integer, Integer> entry : dp.get(i).get(j - 1).entrySet()) {
                        int key = entry.getKey();
                        int value = entry.getValue();
                        if (field[i][j] == 'o') {
                            dp.get(i).get(j).put(key + 1, dp.get(i).get(j).getOrDefault(key + 1, 0) + value);
                        } else if (key > 0) {
                            dp.get(i).get(j).put(key - 1, dp.get(i).get(j).getOrDefault(key - 1, 0) + value);
                        }
                    }
                }
            }
        }
        long ans = 0;
        for (int x : dp.get(h - 1).get(w - 1).values()) {
            ans += x;
        }
        System.out.println(ans);
    }
}
class Scanner {
    BufferedReader br;
    StringTokenizer st = new StringTokenizer("");
    StringBuilder sb = new StringBuilder();
    
    public Scanner() {
        try {
            br = new BufferedReader(new InputStreamReader(System.in));
        } catch (Exception e) {
            
        }
    }
    
    public int nextInt() {
        return Integer.parseInt(next());
    }
    
    public long nextLong() {
        return Long.parseLong(next());
    }
    
    public double nextDouble() {
        return Double.parseDouble(next());
    }
    
    public String next() {
        try {
            while (!st.hasMoreTokens()) {
                st = new StringTokenizer(br.readLine());
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            return st.nextToken();
        }
    }
    
}