N, M = map(int, input().split())

cols = [0] * M
for _ in range(N):
    S = input()
    for i, c in enumerate(S):
        if c == '#':
            cols[i] += 1

for i in range(N):
    t = sum(1 for x in cols if x > 0)
    cs = ['#'] * t
    cs += ['.'] * (M - t)
    print(*cs, sep='')

    for j in range(M):
        if cols[j] > 0:
            cols[j] -= 1