# coding: utf-8
import numpy as np

# Sieve of Eratosthenes
def sieve(a,b):
    if(abs(a)<abs(b)):
        temp = a
        a = b
        b = temp
    
    while(b):
        temp = a
        a = b
        b = temp%b
        
    return abs(int(a))

H,W = map(int,input().split())

# get 2 stars position
starPos = []
for row in range(H):
    col = [i for i, char in enumerate(input()) if char == "*"] 
    while(col):
        starPos.append(np.array((col.pop(), row), dtype=int))
    if(len(starPos) == 2):
        break


# star1 -> star2 vector
vec = starPos[1] - starPos[0]

div = sieve(vec[0],vec[1])
vec = vec / div

# enumerate lattice point on the star1--star2 line
lattice = []
p = starPos[0]
while(((W,H) > p).all() and ((0,0) <= p).all()):
    lattice.append(tuple(p))
    p = p + vec
p = starPos[0]
while(((W,H) > p).all() and ((0,0) <= p).all()):
    lattice.append(tuple(p))
    p = p - vec

# get 3rd star position
for thirdPos in [(x,y) for y in range(H) for x in range(W)]:
    if not thirdPos in lattice:
        starPos.append(thirdPos)
        break

# print result
sky = [["-" for w in range(W)] for h in range(H)]
for i in range(3):
    sky[starPos[i][1]][starPos[i][0]] = "*"
print("\n".join(["".join(s) for s in sky]), "\n")