H,W=map(int,input().split())
A=[]
for _ in range(H):
    A.append(input())
lim=40
dp=[[[0]*(lim) for _ in range(W)]  for _ in range(H)]
dp[0][0][0]=1
for i in range(H):
    for j in range(W):
        for k in range(lim-1):
            if A[i][j]=="o":
                if i!=H-1:
                    dp[i+1][j][k+1]+=dp[i][j][k]
                if j!=W-1:
                    dp[i][j+1][k+1]+=dp[i][j][k]
            elif A[i][j]=='#':
                continue
            else:
                if k==0:
                    continue
                if i!=H-1:
                    dp[i+1][j][k-1]+=dp[i][j][k]
                if j!=W-1:
                    dp[i][j+1][k-1]+=dp[i][j][k]
if A[-1][-1]=='o':
    dp[-1][-1]=[0]+dp[-1][-1]
else:
    dp[-1][-1]=dp[-1][-1][1:]
print(sum(dp[-1][-1]))