# -*- coding: utf-8 -*-
"""
No.455 冬の大三角
https://yukicoder.me/problems/no/455

"""
import sys
from sys import stdin
input = stdin.readline


def solve(stars, fields, H, W):
    x1, y1 = stars[0][0], stars[0][1]
    x2, y2 = stars[1][0], stars[1][1]

    x0, y0 = 0, 0
    if x1 == x2:
        x0 = x1 - 1
        if x0 < 0:
            x0 = x1 + 1
        y0 = (y1 + y2) // 2
        while (x0 == x1 and y0 == y1) or (x0 == x2 and y0 == y2):
            y0 += 1
    else:
        y0 = y1 -1
        if y0 < 0:
            y0 = y1 + 1
        x0 = (x1 + x2) // 2
        while (x0 == x1 and y0 == y1) or (x0 == x2 and y0 == y2):
            x0 += 1

    fields[y0][x0] = '*'


def main(args):
    H, W = map(int, input().split())
    stars = []
    fields = [['-'] * W for _ in range(H)]
    for y in range(H):
        row = input().strip()
        for x, r in enumerate(row):
            if r == '*':
                stars.append([x, y])
                fields[y][x] = '*'

    ans = solve(stars, fields, H, W)

    for row in fields:
        print(*row, sep='')


if __name__ == '__main__':
    main(sys.argv[1:])