H,W = map(int,input().split())
S = [list(input()) for _ in range(H)]
A = []
for i in range(H):
    for j in range(W):
        if S[i][j] == "*":
            A.append((i,j))
if A[0][0] == A[1][0]:
    S[(A[0][0]+1)%H][0] = "*"
elif A[0][1] == A[1][1]:
    S[0][(A[0][1]+1)%H] = "*"
else:
    S[A[0][0]][A[1][1]] = "*"
for s in S:
    print("".join(s))