H, W = map(int, input().split())
a = [list(input()) for _ in [0]*H]
stars = []
for y, l in enumerate(a):
    for x, c in enumerate(l):
        if c == "*":
            stars.append((y, x))
if stars[0][0] != stars[1][0]:
    x = 0 if stars[0][1] != 0 else 1
    y = stars[0][0]
else:
    y = 0 if stars[0][0] != 0 else 1
    x = stars[0][1]
a[y][x] = "*"

for l in a:
    print("".join(l))