H,W=(int(i) for i in input (). split ())
S=[input () for i in range (H)]
C=0
i=0
P=[[0,0],[0,0]]
while C<2:
    j=0
    while j<W and C<2:
        if S[i][j]=="*":
            P[C][0]=i
            P[C][1]=j
            C+=1
        j+=1
    i+=1
if P[0][0]==P[1][0]:
    if P[0][0]>0:
        y=P[0][0]-1
    else:
        y=P[0][0]+1
else:
        y=P[0][0]
if P[0][1]>0:
    x=P[0][1]-1
else:
    x=P[0][1]+1
L=list(S[y])
L[x]="*"
S[y]="".join(L)
for i in range (H):
    print (S[i])