#![allow(unused_imports)]

fn main() {
    input! {
        n: usize, m: usize,
        mut s: [Chars; n],
    }
    let mut cnt = vec![0; m];
    for (i, j) in iproduct!(0..n, 0..m) {
        if s[i][j] == '#' {
            cnt[j] += 1;
        }
    }
    for (i, j) in iproduct!(0..n, 0..m) {
        s[i][j] = if i < cnt[j] { '#' } else { '.' };
    }
    let mut cnt = vec![0; n];
    for (i, j) in iproduct!(0..n, 0..m) {
        if s[i][j] == '#' {
            cnt[i] += 1;
        }
    }
    for (i, j) in iproduct!(0..n, 0..m) {
        s[i][j] = if j < cnt[i] { '#' } else { '.' };
    }
    println!("{}", s.iter().map(|s| s.iter().join("")).join("\n"));
}

use itertools::{Itertools as _, iproduct, izip};
use proconio::{input, marker::*};
use std::{cmp::Reverse, collections::*};

#[macro_export]
macro_rules! chmax {
    ($a:expr, $b:expr) => {{
        let tmp = $b;
        if $a < tmp {
            $a = tmp;
            true
        } else {
            false
        }
    }};
}

#[macro_export]
macro_rules! chmin {
    ($a:expr, $b:expr) => {{
        let tmp = $b;
        if $a > tmp {
            $a = tmp;
            true
        } else {
            false
        }
    }};
}

#[macro_export]
/// mvec![]
macro_rules! mvec {
    ($val:expr; ()) => {
        $val
    };
    ($val:expr; ($size:expr $(,$rest:expr)*)) => {
        vec![mvec![$val; ($($rest),*)]; $size]
    };
}