Lehmät

h_s, w_s = input().split(" ")
h = int(h_s)
w = int(w_s)

inside_row = False
count = 0

for i in range(h):
	prev = ''
	changed = False

	inside_col = False

	for c in input():
		if c == '*':
			if prev == '*' and not changed:
				inside_row = not inside_row
				inside_col = False
				changed = True
			elif not changed:
				inside_col = not inside_col

		elif c == '@' and inside_row and inside_col:
			count += 1

		prev = c

print(count)

Test 1

Group: 1, 2

Verdict: ACCEPTED

Test 2

Group: 1, 2

Verdict: ACCEPTED

Test 3

Group: 1, 2

Verdict: ACCEPTED

Test 4

Group: 1, 2

Verdict: ACCEPTED

Test 5

Group: 1, 2

Verdict: ACCEPTED

Test 6

Group: 2

Verdict: ACCEPTED

Test 7

Group: 2

Verdict: ACCEPTED

Test 8

Group: 2

Verdict: ACCEPTED

Test 9

Group: 2

Verdict: ACCEPTED