H, W = map(int, input().split())
A = [input() for _ in range(H)]

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

for i in range(H):
    for j in range(W):
        for c in range(H + W + 1):
            if dp[i][j][c] == 0:
                continue

            # (i, j) -> (i + 1, j)
            if i + 1 < H and A[i + 1][j] != '#':
                if A[i + 1][j] == 'o' and c + 1 <= H + W:
                    dp[i + 1][j][c + 1] += dp[i][j][c]
                elif A[i + 1][j] == 'x' and c - 1 >= 0:
                    dp[i + 1][j][c - 1] += dp[i][j][c]

            # (i, j) -> (i, j + 1)
            if j + 1 < W and A[i][j + 1] != '#':
                if A[i][j + 1] == 'o' and c + 1 <= H + W:
                    dp[i][j + 1][c + 1] += dp[i][j][c]
                elif A[i][j + 1] == 'x' and c - 1 >= 0:
                    dp[i][j + 1][c - 1] += dp[i][j][c]

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