use itertools::Itertools;
use proconio::{input, marker::Chars};

fn solve() -> Vec<String> {
  input! {
    n: usize,
    m: usize,
    s: [Chars; n],
  }
  let mut t = vec![vec!['.'; n]; m];
  for i in 0..n {
    for j in 0..m {
      t[j][i] = s[i][j];
    }
  }
  let c = t.iter().map(|l| l.iter().filter(|&&ch| ch == '#').count()).collect_vec();
  let mut u = vec![vec!['.'; m]; n];
  for j in 0..m {
    for i in 0..c[j] {
      u[i][j] = '#';
    }
  }
  let d = u.iter().map(|l| l.iter().filter(|&&ch| ch == '#').count()).collect_vec();
  d.iter().map(|&di| format!("{}{}", "#".repeat(di), ".".repeat(m - di))).collect_vec()
}

fn main() {
  let ans = solve();
  for l in ans.iter() {
    println!("{}", l);
  }
}