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))
y0,x0 = A[0]
y1,x1 = A[1]
if y0==0 and y1==0:
    S[H-1][W-1] = "*"
elif y0==0:
    S[0][(x0+1)%W] = "*"
elif y1==0:
    S[0][(x1+1)%W] = "*"
else:
    if x0==x1:
        S[0][(x0+1)%W] = "*"
    else:
        S[0][x0] = "*"
for i in range(H):
    print("".join(S[i]))