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

dp=[[[0]*30 for _ in range(w)]for _ in range(h)]
dp[0][0][1]=1
for i in range(h):
	for j in range(w):
		if i+1<h:
			if a[i+1][j]=='#':pass
			else:
				for k in range(30):
					if a[i+1][j]=='x' and k-1>=0:dp[i+1][j][k-1]+=dp[i][j][k]
					if a[i+1][j]=='o' and k+1<30:dp[i+1][j][k+1]+=dp[i][j][k]
		if j+1<w:
			if a[i][j+1]=='#':pass
			else:
				for k in range(30):
					if a[i][j+1]=='x' and k-1>=0:dp[i][j+1][k-1]+=dp[i][j][k]
					if a[i][j+1]=='o' and k+1<30:dp[i][j+1][k+1]+=dp[i][j][k]
#for j in dp:
#	print(*map(lambda x:x[:10],j))
print(sum(dp[-1][-1]))