h,w=map(int,input().split())
s=[input() for i in range(h)]
q=[[[0]*21 for j in range(w)] for i in range(h)]
q[0][0][1]=1
for i in range(h):
	for j in range(w):
		if i+1<h and s[i+1][j]!="#":
			if s[i+1][j]=="o":
				for k in range(21):
					if q[i][j][k]>0:
						q[i+1][j][k+1]+=q[i][j][k]
			else:
				for k in range(1,21):
					if q[i][j][k]>0:
						q[i+1][j][k-1]+=q[i][j][k]
		if j+1<w and s[i][j+1]!="#":
			if s[i][j+1]=="o":
				for k in range(21):
					if q[i][j][k]>0:
						q[i][j+1][k+1]+=q[i][j][k]
			else:
				for k in range(1,21):
					if q[i][j][k]>0:
						q[i][j+1][k-1]+=q[i][j][k]
print(sum(q[h-1][w-1]))