Lehmät

n, m = map(int,input().split())
mapp = []
f = (0,0)
s = (0,0)
e = (0,0)
for _ in range(n):
  mapp.append(input())
i=0
j=0
while f==(0,0):
  if "*" in mapp[i]:
    j = mapp[i].index("*")
    f=(i,j)
    break
  i+=1
ne = j
for l in mapp[i][j:]:
  if l=="*":
    ne+=1
s=(i,ne-1)
 
id = i
for r in range(i,n):
    if mapp[r][ne-1]=="*":
        id+=1
    else:
        break
e = (id-1,j)
c = 0
for w in range(f[0],e[0]):
  for d in range(f[1],s[1]):
    if mapp[w][d]=="@":
      c+=1
print(c)
 
 
 
 

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