H,W = map(int,input().split())
S = [list(input()) for i in range(H)]

d = [
		[(1,0),(-1,0)],
		[(0,1),(1,0)],
		[(1,-1),(-1,1)],
		[(-1,-1),(1,1)]
]
flag = False
for i in range(H):
	for j in range(W):
		if S[i][j] == '*':
			continue
		flag = False
		for k in d:
			a,b = k[0],k[1]
			ni,nj = i + a[0],j + a[1]
			ny,nx = i + b[0],j + b[1]
			cnt = 0
			while ni < H and nj < W and ni >= 0 and nj >= 0:
				if S[ni][nj] == '*':
					cnt+=1
				ni += a[0]
				nj += a[1]
			while ny < H and nx < W and ny >= 0 and nx >= 0:
				if S[ny][nx] == '*':
					cnt+=1
				nx += b[0]
				ny += b[1]
			if cnt == 2:
				flag = True
		if not flag:
			S[i][j] = '*'
			break
	if not flag:
		break
for i in range(H):
	print(''.join(S[i]))