N, M = map(int, input().split())
floor = [input() for _ in range(N)]
count = 0
for i in range(N):
for j in range(M-1):
if floor[i][j] == "-" and floor[i][j + 1] == "|":
count += 1
if floor[i][-1] == "-":
count += 1
for j in range(M):
for i in range(N-1):
if floor[i][j] == "|" and floor[i + 1][j] == "-":
count += 1
if floor[N-1][j] == "|":
count += 1
print(count)