H, W = map(int, input().split())
A = []
for i in range(H):
  a = str(input())
  A.append(a)

dp = [[[0] *(H * W + 1) for i in range(W)] for j in range(H)]
dp[0][0][1] = 1

for i in range(H):
  for j in range(W):
    if A[i][j] == "#":
      for k in range(W * H + 1):
        dp[i][j][k] = 0
    else:
      if A[i][j] == "o":
        for k in range(1, H * W + 1):
          if i > 0:
            dp[i][j][k] += dp[i - 1][j][k - 1]
          if j > 0:
            dp[i][j][k] += dp[i][j - 1][k - 1]
      else:
        for k in range(H * W):
          if i > 0:
            dp[i][j][k] += dp[i - 1][j][k + 1]
          if j > 0:
            dp[i][j][k] += dp[i][j - 1][k + 1]

ans = 0
for i in range(H * W + 1):
  ans += dp[-1][-1][i]

print(ans)