H, W = map(int, input().split(" "))
A = ["#" * (W+1)] + ["#" + input() for _ in range(H)]

MAX_J = 100
dp = [[[0 for _ in range(MAX_J)] for _ in range(W+1)] for _ in range(H+1)]

for h in range(1, H+1):
    for w in range(1, W+1):
        if w == 1 and h == 1:
            dp[h][w][1] = 1
        elif A[h][w] == "#":
            continue
        elif A[h][w] == "o":
            for k in range(1, MAX_J):
                dp[h][w][k] = dp[h-1][w][k-1] + dp[h][w-1][k-1]
        else:
            for k in range(MAX_J-1):
                dp[h][w][k] = dp[h-1][w][k+1] + dp[h][w-1][k+1]

print(sum(dp[H][W]))