H, W = gets.split.map(&:to_i)
S = H.times.map { gets.chomp }
counter_y = Array.new(H, 0)
counter_x = Array.new(W, 0)

H.times do |y|
  W.times do |x|
    next if S[y][x] == '-'

    counter_y[y] += 1
    counter_x[x] += 1
  end
end

H.times do |y|
  next if counter_y[y] == 2

  W.times do |x|
    next if counter_x[x] == 2
    next if S[y][x] == '*'

    S[y][x] = '*'
    puts S
    exit
  end
end