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