H, W = map(int, input().split())
S = [list(input()) for _ in range(H)]
x, y = [], []

for i in range(H):
    for j in range(W):
        if S[i][j]=='*':
            x.append(i)
            y.append(j)
    
for i in range(H):
    for j in range(H):
        if S[i][j]=='*':
            continue
        
        v1 = (x[0]-i, y[0]-j)
        v2 = (x[1]-i, y[1]-j)
        
        if v1[0]*v2[1]!=v1[1]*v2[0]:
            S[i][j] = '*'
            
            for Si in S:
                print(''.join(Si))
            
            exit()