def read_data():
    H, W = map(int, input().split())
    Ss = [input().rstrip() for h in range(H)]
    return H, W, Ss

def solve(H, W, Ss):
    x1, y1, x2, y2 = get_star_pos(H, W, Ss)
    x3, y3 = put_star(H, W, x1, y1, x2, y2)
    print_stars(H, W, x1, y1, x2, y2, x3, y3)

def get_star_pos(H, W, Ss):
    xys = []
    for y, S in enumerate(Ss):
        for x, c in enumerate(S):
            if c == '*':
                xys.append(x)
                xys.append(y)
    return xys

def print_stars(H, W, x1, y1, x2, y2, x3, y3):
    star_pos = [(x1, y1), (x2, y2), (x3, y3)]
    for h in range(H):
        row = []
        for w in range(W):
            if (w, h) in star_pos:
                row.append('*')
            else:
                row.append('_')
        print(''.join(row))

def put_star(H, W, x1, y1, x2, y2):
    for x in range(W):
        for y in range(H):
            if is_valid(x1, y1, x2, y2, x, y):
                return x, y
    raise RuntimeError("Couldn't find star pos.")

def is_valid(x1, y1, x2, y2, x3, y3):
    x1 = x1 - x3
    x2 = x2 - x3
    y1 = y1 - y3
    y2 = y2 - y3
    return x1 * y2 != x2 * y1

H, W, Ss = read_data()
solve(H, W, Ss)