import java.util.Arrays;
import java.util.Scanner;

public class Main {
	final long MODULO = 1_000_000_000 + 7;

	void run() {
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		int m = sc.nextInt();
		DJSet ds = new DJSet(n);
		for (int i = 0; i < m; ++i) {
			int a = sc.nextInt();
			int b = sc.nextInt();
			--a;
			--b;
			ds.setUnion(a, b);
		}
		for (int i = 0; i < n; ++i) {
			System.out.println(ds.root(i) + 1);
		}
	}

	class DJSet {
		int n;
		int[] upper;

		public DJSet(int n_) {
			n = n_;
			upper = new int[n];
			Arrays.fill(upper, -1);
		}

		boolean equiv(int x, int y) {
			return root(x) == root(y);
		}

		int root(int x) {
			return upper[x] < 0 ? x : (upper[x] = root(upper[x]));
		}

		void setUnion(int x, int y) {
			x = root(x);
			y = root(y);
			if (x == y) {
				return;
			}
			if (upper[x] < upper[y]) {
				int d = x;
				x = y;
				y = d;
			}
			if (upper[x] == upper[y] && x < y) {
				int d = x;
				x = y;
				y = d;
			}
			upper[y] += upper[x];
			upper[x] = y;
		}
	}

	static void tr(Object... objects) {
		System.out.println(Arrays.deepToString(objects));
	}

	public static void main(String[] args) {
		new Main().run();
	}
}