Lehmät

n, m = input().split()
n = int(n)
m = int(m)
k = 0
x = " "
previous = " "
counter = 0

for t in range(n):
    i = 0
    x = str(input())
    for letter in x:
        if letter == "*" and previous == "*" and k == 0:
            k = 1
            break
        elif letter == "*" and previous == "*" and k == 1:
            k = 0
            break
        previous = letter
    if k == 1:
        for letter in x:
            if letter == "*" and i == 0:
                i = 1
            elif letter == "*" and i == 1:
                i = 0
                break
            if letter == "@" and i == 1:
                counter += 1
    
print(counter)

Test 1

Group: 1, 2

Verdict: ACCEPTED

Test 2

Group: 1, 2

Verdict: WRONG ANSWER

Test 3

Group: 1, 2

Verdict: ACCEPTED

Test 4

Group: 1, 2

Verdict: ACCEPTED

Test 5

Group: 1, 2

Verdict: WRONG ANSWER

Test 6

Group: 2

Verdict: ACCEPTED

Test 7

Group: 2

Verdict: ACCEPTED

Test 8

Group: 2

Verdict: ACCEPTED

Test 9

Group: 2

Verdict: ACCEPTED