h, w = map(int, input().split())
a = [list(input()) for _ in range(h)]

dp = [[[0 for _ in range(101)] for _ in range(w)] for _ in range(h)]
dp[0][0][1] = 1

for i in range(h):
    for j in range(w):  # start position
        if a[i][j] == "#":
            continue
        for k in range(100):
            if i + 1 < h:
                if a[i + 1][j] == "x":
                    if k > 0:
                        dp[i + 1][j][k - 1] += dp[i][j][k]
                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] == "x":
                    if k > 0:
                        dp[i][j + 1][k - 1] += dp[i][j][k]
                if a[i][j + 1] == "o":
                    dp[i][j + 1][k + 1] += dp[i][j][k]

ans = 0
# print(dp[h - 1][w - 1][0])
for i in range(1, 101):
    ans += dp[h - 1][w - 1][i]

# print(dp[0][1])
# print(dp[1][2])
# print(dp[2][1])
# print(dp[2][2])

# print(dp[0][2])
# print(dp[1][2])
# print(dp[2][1])

print(ans)