H,W=map(int,input().split())
A=[]
T=[]
for y in range(H):
    S=input()
    T.append(S)
    for x in range(W):
        if S[x]=="*":
            A.append((x,y))
C=A[0][0]-A[1][0],A[0][1]-A[1][1]

X=Y=-1
for y in range(H):
    for x in range(W):
        D=A[0][0]-x,A[0][1]-y
        if C[0]*D[1]!=C[1]*D[0] and T[y][x]=="-":
            X,Y=x,y

T[Y]=T[Y][:X]+"*"+T[Y][X+1:]

print("\n".join(T))