y,x = map(int,input().split())
al = []
for i in range(y):
  s = [_ for _ in input()]
  al.append(s)
move = [(0,-1),(0,1)]
iwai = ['y','i','w','i','y','9']
iwai.reverse()
for i in range(y):
  for j in range(x):
    for dy,dx in move:
      if 0<=i+dy<y and 0<=j+dx<x:
        one = True
        for l in range(6):
          if 0<=i+dy*l<y and 0<=j+dx*l<x:
            if al[i+dy*l][j+dx*l] == iwai[l]:
              pass
            else:
              one = False
        if one == True:
          al[i+dy][j+dx] = 'Y'
          break
for i in al:
  print(''.join(i))