H,W = map(int,input().split())
S = [list(input()) for i in range(H)]
p = []
for i in range(H):
	for j in range(W):
		if S[i][j] == '*':
			p.append((i,j))
ok = [[True for j in range(W)] for i in range(H)]
ok[p[0][0]][p[0][1]] = False
ok[p[1][0]][p[1][1]] = False
dy,dx = [0,1,0,-1],[1,0,-1,0]
flag = False
ansi,ansj = -1,-1
for pp in p:
	for i in range(4):
		ny,nx = pp[0] + dy[i],pp[1] + dx[i]
		if ny < H and nx < W and ny >= 0 and nx >= 0:
			if not ok[ny][nx]:
				continue
			if not (p[0][0] == p[1][0] == ny or p[0][1] == p[1][1] == nx):
				ansi,ansj = ny,nx
				flag = True
				break
	if flag:
		break
S[ansi][ansj] = '*'
for i in range(H):
	print(''.join(S[i]))