H, W = [int(s) for s in input().split()]
grid = [[*input()] for _ in range(H)]

ngrid = [["."] * W for _ in range(H)]
for j in range(W):
    count = [grid[i][j] for i in range(H)].count("#")
    for i in range(count):
        ngrid[i][j] = "#"
grid = ngrid

ngrid = [["."] * W for _ in range(H)]
for i in range(H):
    count = grid[i].count("#")
    for j in range(count):
        ngrid[i][j] = "#"

for row in ngrid:
    print(*row, sep="")