#include <bits/stdc++.h>
#include "bits/stdc++.h"
#include <iostream>
#include <iomanip>
#include <vector>
#include <algorithm>
#include <string>
#include <sstream>
#include <cmath>
#include <stack>
#include <queue>
#include <cctype>
#include <stdio.h>
#include <map>
#include <unordered_map>
#include <string.h>
#include <utility>

typedef long long ll;
#define INF (1e9+1)
#define rep(i,n) for(ll i=0;i<(ll)(n);i++)
using namespace std;

typedef pair<int, int> P;

int boss[10001];
int team_rank[10001];
int n, m;

void init(int v) {

	for (int i = 1; i <= v; i++) {
		boss[i] = i;
		team_rank[i] = 1;
	}
}

int find(int x) {
	if (boss[x] == x) {
		return x;
	} else {

		return boss[x] = find(boss[x]);
	}
}
bool same(int a, int b) {
	return find(a) == find(b);
}


void unite(int a, int b) {

	int x = find(a);
	int y = find(b);

	if (x == y)
		return;

	if (team_rank[x] < team_rank[y]) {
		for (int i = 1; i <= n; i++) {
				if (same(i, x) && i !=x) {
					boss[i] = y;
				}
			}
			boss[x] = y;
		team_rank[y] +=team_rank[x];
 	} else if (team_rank[x] > team_rank[y]) {

		for (int i = 1; i <= n; i++) {
			if (same(i, y) && i !=y) {
				boss[i] = x;
			}
		}
		boss[y] = x;
		team_rank[x] +=team_rank[y];
	} else {
		if (x < y) {

			for (int i = 1; i <= n; i++) {
				if (same(i, y) && i !=y) {
					boss[i] = x;
				}
			}
			boss[y] = x;
			team_rank[x] +=team_rank[y];
		} else {

			for (int i = 1; i <= n; i++) {
				if (same(i, x) && i !=x) {
					boss[i] = y;
				}
			}
			boss[x] = y;

			team_rank[y] +=team_rank[x];
		}
	}
}


int main() {

	cin >> n >> m;

	init(n);

	int a, b;
	for (int i = 0; i < m; i++) {
		cin >> a >> b;
/*
		cout << "a" << find(a) << " " << "b" << find(b) << endl;*/
		unite(a, b);
/*
		cout << "a" << a << " " << "b" << b << endl;

*/

/*		for (int i = 1; i <= n; i++) {
			cout << "boss" << boss[i] << " " << "teamrank" << team_rank[i]
					<< endl;
		}
		cout << endl;*/

	}

	for (int i = 1; i <= n; i++) {
		cout <<boss[i]<< endl;
	}

}