Lehmät

n, m = map(int, input().split())
cows = 0
for _ in range(n):
    fence = False
    counter = 0
    for i in input():
        if i == "@" and fence:
            counter += 1
        elif i == "*":
            if counter > 0 and fence: 
                cows += counter
                fence = False
            else:
                fence = True
print(cows)

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