#! /usr/bin/env python3

H, W = map(int, input().split())
S = [input() for x in range(H)]
if len(S) == len(set(S)):
    for i in range(H):
        if S[i].count('*') > 0:
            S[i] = S[i].replace('-', '*', 1)
            break
else:
    for i in range(H):
        if not S[i].count('*') > 1:
            S[i] = S[i].replace('-', '*', 1)
            break
for i in S:
    print(i)