h, w = map(int, input().split())
S = [list(input()) for _ in range(h)]

p1i, p1j, p2i, p2j = -1, -1, -1, -1
for i in range(h):
    for j in range(w):
        if S[i][j] == '*':
            if p1i == -1:
                p1i, p1j = i, j
            else:
                p2i, p2j = i, j
if p1i == p2i:
    if p1i < h - 1:
        p3i = p1i + 1
    else:
        p3i = p1i - 1
else:
    p3i = p1i
if p1j == p2j:
    if p1j < w - 1:
        p3j = p1j + 1
    else:
        p3j = p1j - 1
else:
    p3j = p2j
for i in range(h):
    for j in range(w):
        if i == p3i and j == p3j:
            S[i][j] = '*'
for i in range(h):
    print(''.join(S[i]))