import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.Arrays;
import java.util.NoSuchElementException;

public class Main {

	int N,M;
	int[] union,size;

	public void init(int n){
		union = new int[n];
		size = new int[n];

		for(int i = 0;i < n;i++){
			union[i] = i;
		}

		Arrays.fill(size,1);
	}

	public void unite(int x,int y){

		x = root(x);
		y = root(y);

		if(x == y)return;

		if(size[x] < size[y]){
			union[x] = y;
			size[y] += size[x];
			size[x] = 0;
		}else if(size[x] > size[y]){
			union[y] = x;
			size[x] += size[y];
			size[y] = 0;
		}else{
			if(x < y){
				union[y] = x;
				size[x] += size[y];
				size[y] = 0;
			}else{
				union[x] = y;
				size[y] += size[x];
				size[x] = 0;
			}
		}

	}

	public int root(int x){
		if(union[x] == x)return x;
		return root(union[x]);
	}

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


	public void solve() {
		N = nextInt();
		M = nextInt();

		init(N);

		for(int i = 0;i < M;i++){
			int a = nextInt()-1;
			int b = nextInt()-1;

			unite(a,b);
		}

		for(int i = 0;i < N;i++){
			out.println(root(i) + 1);
		}
	}

	public static void main(String[] args) {
		out.flush();
		new Main().solve();
		out.close();
	}

	/* Input */
	private static final InputStream in = System.in;
	private static final PrintWriter out = new PrintWriter(System.out);
	private final byte[] buffer = new byte[2048];
	private int p = 0;
	private int buflen = 0;

	private boolean hasNextByte() {
		if (p < buflen)
			return true;
		p = 0;
		try {
			buflen = in.read(buffer);
		} catch (IOException e) {
			e.printStackTrace();
		}
		if (buflen <= 0)
			return false;
		return true;
	}

	public boolean hasNext() {
		while (hasNextByte() && !isPrint(buffer[p])) {
			p++;
		}
		return hasNextByte();
	}

	private boolean isPrint(int ch) {
		if (ch >= '!' && ch <= '~')
			return true;
		return false;
	}

	private int nextByte() {
		if (!hasNextByte())
			return -1;
		return buffer[p++];
	}

	public String next() {
		if (!hasNext())
			throw new NoSuchElementException();
		StringBuilder sb = new StringBuilder();
		int b = -1;
		while (isPrint((b = nextByte()))) {
			sb.appendCodePoint(b);
		}
		return sb.toString();
	}

	public int nextInt() {
		return Integer.parseInt(next());
	}

	public long nextLong() {
		return Long.parseLong(next());
	}

	public double nextDouble() {
		return Double.parseDouble(next());
	}
}