Lehmät

inp = input()
inp = inp.split()
n = int(inp[0])

def invert(bool):
    if bool == True:
        return(False)
    else:
        return(True)

cows = 0
for i in range(n):
    line = input()
    if line.count('*') == 2:
        counting = False
        for char in line:
            if char == "*":
                counting = invert(counting)
            if counting == True:
                if char == "@":
                    cows += 1

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