def main():
    H, W = map(int, input().split())
    S = tuple(input() for _ in [0] * H)

    s = []
    p = []
    apnds = s.append
    apndp = p.append
    for x, t in enumerate(S):
        apnds(list(t))
        if '*' in t:
            k = [i for i, j in enumerate(t) if j == '*']
            for y in k:
                apndp([x, y])

    if p[0][0] == p[1][0]:
        y = p[0][1]
        if p[0][0]:
            x = 0
        else:
            x = 1
    elif p[0][1] == p[1][1]:
        x = p[0][0]
        if p[0][1]:
            y = 0
        else:
            y = 1
    else:
        x = p[0][0]
        y = p[1][1]

    s[x][y] = '*'
    for t in s:
        print(*t, sep='')

main()