#include <bits/stdc++.h>
using namespace std;
#define repl(i,a,b) for(int i=(int)(a);i<(int)(b);i++)
#define rep(i,n) repl(i,0,n)
#define mp(a,b) make_pair((a),(b))
#define pb(a) push_back((a))
#define all(x) (x).begin(),(x).end()
#define uniq(x) sort(all(x)),(x).erase(unique(all(x)),end(x))
#define fi first
#define se second
#define dbg(...) _dbg(#__VA_ARGS__, __VA_ARGS__)
void _dbg(string){cout<<endl;}
template<class H,class... T> void _dbg(string s,H h,T... t){int l=s.find(',');cout<<s.substr(0,l)<<" = "<<h<<", ";_dbg(s.substr(l+1),t...);}
template<class T,class U> ostream& operator<<(ostream& o, const pair<T,U> &p){o<<"("<<p.fi<<","<<p.se<<")";return o;}
template<class T> ostream& operator<<(ostream& o, const vector<T> &v){o<<"[";for(T t:v){o<<t<<",";}o<<"]";return o;}

#define INF 1120000000

class UnionFind {
public:
  vector<int> par, rank; // parent(negative := its root and abs-value is its size), depth
  UnionFind(int sz) : par(sz, -1), rank(sz, 0){}
  int find(int x){
    if(par[x]<0) return x;
    else return par[x] = find(par[x]);
  }
  void unite(int x, int y){
    x=find(x); y=find(y);
    if(x==y) return;  // already belong to same tree
    if(rank[x] < rank[y]){  // y becomes parent node
      par[y] += par[x];
      par[x] = y;
    } else {  // x becomes parent node
      par[x] += par[y];
      par[y] = x;
      if(rank[x]==rank[y]) rank[x]++;
    }
  }
  inline bool same(int x, int y){ return find(x) == find(y); }
  inline int size(int x){ return -par[find(x)]; }
};

int main(){
  int n,m;
  cin>>n>>m;
  UnionFind uf(n);
  vector<int> boss(n);
  rep(i,n) boss[i] = i;

  rep(_,m){
    int a,b;
    cin>>a>>b;
    a--;b--;
    if(uf.same(a,b)) continue;
    int ai = uf.find(a);
    int bi = uf.find(b);
    if(uf.size(a) == uf.size(b)){
      if(boss[ai] > boss[bi]) swap(ai,bi), swap(a,b);
    }
    else if(uf.size(a) < uf.size(b)) swap(a,b), swap(ai,bi);
    // win a
    int bs = boss[ai];
    uf.unite(a,b);
    boss[uf.find(a)] = bs;
  }

  rep(i,n) cout << boss[uf.find(i)]+1 << endl;

  return 0;
}