H,W = map(int,input().split())
S = [list(input()) for _ in range(H)]
for i in range(H):
    if "*" in S[i]:
        if S[i].count("*") == 1:
            x = S[i].index("*")
            if x == 0:
                S[i][1] = "*"
            else:
                S[i][0] = "*"
            break
        elif S[i].count("*") == 2:
            if i == 0:
                S[0][0] = "*"
            else:
                S[1][0] = "*"
            break
for s in S:
    print("".join(s))