def sgets = gets.strip
def get_int = Integer(sgets)
def get_list = sgets.split
def get_int_list = get_list.map { Integer(_1) }
def puts_yn(b) = puts(b ? 'Yes' : 'No')

n, m = get_int_list
s = n.times.map do
  sgets.chars.map { it == '#' }
end

def op0(s, n, m, di, dj)
  r = false
  (di.abs..n-1).each do |i|
    (dj.abs..m-1).each do |j|
      i1 = i + di
      j1 = j + dj 
      if !s[i1][j1] && s[i][j] 
        r = s[i1][j1] = true
        s[i][j] = false
      end
    end
  end
  r
end

def op1(s, n, m) = op0(s, n, m, -1, 0)
def op2(s, n, m) = op0(s, n, m, 0, -1)

while op1(s, n, m); end
while op2(s, n, m); end

out = s.map do |l|
  l.map do |b|
    b ? '#' : '.'
  end.join
end.join("\n")

puts out