Lehmät

if __name__=="__main__":

	n, m = (int(x) for x in str(input()).split(" "))
	lines = []
	for i in range(n):
		lines.append(str(input()))
	count = 0
	while "*" not in lines[count]:
		count += 1
	count += 1
	x_start = lines[count].find("*")+1
	x_end = lines[count][x_start:].find("*")+x_start
	sum_thing = 0
	for line in lines[count:]:
		
		thing = line[x_start:x_end]
		
		if thing[0] == "*":
			#print("breaked")
			break

		for j in range(len(thing)):
			
			if thing[j] == "@":
				sum_thing += 1
	print(sum_thing)

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