E=enumerate
def S(b,x,y):
 for X,Y in[(x,y+1),(x,y-1),(x+1,y),(x-1,y)]:
  try:
   if X>-1<Y:yield(X,Y,b[X][Y])
  except:1
def f(b):
 a,s=[],[]
 while o:=[(x,y,c)for x,t in E(b)for y,c in E(t)if(c in'XO')>((x,y,c)in s)]:
  q,A=[o[0]],[]
  while q:x,y,c=q.pop(0);A+=(x,y,c),;q+=[i for i in S(b,x,y)if(c==i[-1])>(i in A)]
  a+=A,;s+=A
 for i in a:
  for x,y,_ in i:b[x][y]=str(len({k for X,Y,_ in i for k in S(b,X,Y)if'.'==k[-1]}))
 return'\n'.join(map(' '.join,b)).replace('.','0')
 
def to_board(s):
	return [[b for b in i if b != ' ']for i in filter(None, s.split('\n'))]
 
b1 = to_board(""". . O .
. X X .
. X . .
. O O .""")
b2 = to_board(""". X X .
X . X O
X X O .""")
b3 = to_board(""". X . O""")
b4 = to_board("""X
X
.
.
O
.""")
print(f(b1))
print('-'*20)
print(f(b3))
print('-'*20)
print(f(b4))
print('-'*20)
print(f(b2))

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