import sys
# input = lambda :sys.stdin.readline()[:-1]
ni = lambda :int(input())
na = lambda :list(map(int,input().split()))
yes = lambda :print("yes");Yes = lambda :print("Yes");YES = lambda : print("YES")
no = lambda :print("no");No = lambda :print("No");NO = lambda : print("NO")
#######################################################################

n, m = na()
s = [input() for i in range(n)]

cnt = [0] * m
for i in range(n):
    for j in range(m):
        if s[i][j] == "#":
            cnt[j] += 1

dnt = [0] * n
for j in range(m):
    for i in range(cnt[j]):
        dnt[i] += 1

for i in range(n):
    print("#" * dnt[i] + "." * (m - dnt[i]))