n, m = map(int, input().split())
s = [input() for _ in range(n)]
def count_stones_for_column(i):
	return sum([1 for j in s if j[i]=="#"])
stones_for_each_column = [count_stones_for_column(i) for i in range(m)]
def print_stones_for_row(i):
	stones = sum([1 for j in stones_for_each_column if j>i])
	print("#"*stones+"."*(m-stones))
for i in range(n):
	print_stones_for_row(i)