from collections import Counter

n, m = map(int, input().split())
s = [input() for _ in range(n)]

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

c = [0] * n
for v in cnt:
    if v > 0:
        c[v-1] += 1
for i in reversed(range(n-1)):
    c[i] += c[i+1]

ans = [["."] * m for _ in range(n)]
for i in range(n):
    for j in range(m):
        if c[i] > j:
            ans[i][j] = "#"

    print(*ans[i], sep = "")