import java.io.*; import java.util.*; public class Main { public static void main(String[] args) throws Exception { Scanner sc = new Scanner(); int n = sc.nextInt(); int m = sc.nextInt(); UnionFindTree uft = new UnionFindTree(n); for (int i = 0; i < m; i++) { uft.unite(sc.nextInt() - 1, sc.nextInt() - 1); } StringBuilder sb = new StringBuilder(); for (int i = 0; i < n; i++) { sb.append(uft.find(i) + 1).append("\n"); } System.out.print(sb); } static class UnionFindTree { int[] parents; int[] counts; public UnionFindTree(int size) { parents = new int[size]; counts = new int[size]; for (int i = 0; i < size; i++) { parents[i] = i; counts[i] = 1; } } public int find(int x) { if (x == parents[x]) { return x; } else { return parents[x] = find(parents[x]); } } public void unite(int x, int y) { int xx = find(x); int yy = find(y); if (xx == yy) { return; } if (counts[xx] > counts[yy] || (counts[xx] == counts[yy] && xx < yy)) { counts[xx] += counts[yy]; parents[yy] = xx; } else { counts[yy] += counts[xx]; parents[xx] = yy; } } } } class Scanner { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); StringTokenizer st = new StringTokenizer(""); public Scanner() throws Exception { } public int nextInt() throws Exception { return Integer.parseInt(next()); } public long nextLong() throws Exception { return Long.parseLong(next()); } public double nextDouble() throws Exception { return Double.parseDouble(next()); } public String next() throws Exception { while (!st.hasMoreTokens()) { st = new StringTokenizer(br.readLine()); } return st.nextToken(); } }