#![allow(unused_macros, unused_imports)]

use std::io::*;
use std::collections::*;

fn read_line() -> String {
    let mut s = String::new();
    stdin().read_line(&mut s).unwrap();
    s
}

macro_rules! from_iter {
    ($($a:ident),+ = $it:expr) => {
        $(let $a;)+
        {
            let mut _it = $it.into_iter();
            $($a = _it.next().unwrap();)+
                assert!(_it.next().is_none());
        }
    };
}

macro_rules! from_str {
    ($($a:ident : $t:ty),+ = $s:expr) => {
        $(let $a: $t;)+
        {
            let mut _it = $s.split_whitespace();
            $($a = _it.next().unwrap().parse().unwrap();)+
                assert!(_it.next().is_none());
        }
    };
}

macro_rules! print_var_fmt {
    ($e:expr) => {
        concat!(stringify!($e), ":\t{}")
    };
    ($e:expr, $($es: expr),+) => {
        concat!(print_var_fmt!($e), ",\t", print_var_fmt!($($es),+))
    };
}

macro_rules! dbg {
    ($($es:expr),+) => {
        writeln!(&mut io::stderr(), print_var_fmt!($($es),*), $($es),*);
    };
}

fn main() {
    let line = read_line();
    from_str!(n: usize, m: usize = line.trim());

    let mut boss: Vec<u32> = (0..n as u32+1).collect();
    let mut piki: Vec<u32> = vec![1; n+1];

    for _ in 0..m {
        let line = read_line();
        from_str!(a: usize, b: usize = line.trim());
        let ta = boss[a] as usize;
        let tb = boss[b] as usize;
        if ta != tb {
            if piki[ta] > piki[tb] || piki[ta] == piki[tb] && ta < tb {
                piki[ta] += piki[tb];
                for i in 1..n+1 {
                    if boss[i] == tb as u32 {
                        boss[i] = ta as u32;
                    }
                }
            } else {
                piki[tb] += piki[ta];
                for i in 1..n+1 {
                    if boss[i] == ta as u32 {
                        boss[i] = tb as u32;
                    }
                }
            }
        }
    }
    for i in 1..n+1 {
        println!("{}", boss[i]);
    }
}