N = int(input())
S = [input() for _ in range(N)]

ans = 0
for i in range(N):
	a = 0
	p = 0
	for j in range(N):
		if S[i][j] == "A":a += 1
		elif S[i][j] == ".":p += 1
	if a == N - 1 and p == 1:ans += 1
	
	a = 0
	p = 0
	for j in range(N):
		if S[j][i] == "A":a += 1
		elif S[j][i] == ".":p += 1
	if a == N - 1 and p == 1:ans += 1

a = 0
p = 0
for i in range(N):
	if S[i][i] == "A":a += 1
	elif S[i][i] == ".":p += 1
if a == N - 1 and p == 1:ans += 1
a = 0
p = 0
for i in range(N):
	if S[i][-1-i] == "A":a += 1
	elif S[i][-1-i] == "p":p += 1
if a == N - 1 and p == 1:ans += 1
print(ans)