h,w = map(int,input().split()) s = [list(input()) for _ in range(h)] r = "yiwiy9" l = "9yiwiy" for i in range(h): j = 0 while j < w-5: if ''.join(s[i][j:j+6]) == l: s[i][j+1] = "Y" j += 6 continue if ''.join(s[i][j:j+6]) == r: s[i][j+4] = "Y" j += 6 continue j += 1 for i in range(h): print(''.join(s[i]))