#include <bits/stdc++.h>
using namespace std;

#define rep(i,j,n) for(int i=(j);i<(n);i++)
#define erep(i,j,n) for(int i=(j);i<=(n);i++)
#define all(i) i.begin(),i.end()
#define rall(i) i.rbegin(),i.rend()
#define INF 1e9
const int mod = 1e9+7;

typedef vector<int> vi;
typedef vector<string> vs;
typedef vector<vi> vvi;
typedef pair<int, int> pi;
typedef long long i64;

struct UnionFind {
  vector<int> node;

  UnionFind(int sz) {
    node.resize(sz, -1);
  }

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

  int size(int x) {
    return -node[root(x)];
  }

  void unite(int x, int y) {
    x = root(x);
    y = root(y);
    if(x == y) return;
    if(size(x) < size(y)) {
      swap(x, y);
    }
    else if(size(x) > size(y)) {
    }
    else if(x > y) {
      swap(x, y);
    }

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

int main() {
  cin.tie(0);
  ios::sync_with_stdio(false);

  int n, m;
  cin >> n >> m;
  UnionFind uf(n + 1);
  rep(i, 0, m) {
    int a, b;
    cin >> a >> b;
    uf.unite(a, b);
  }
  erep(i, 1, n) cout << uf.root(i) << endl;
}