#include <iostream>
#include <vector>

using namespace std;

class UnionFind{
    public:
        UnionFind(){
            UnionFind(0);
        }

        UnionFind(int N){
            par.resize(N);
            rnk.resize(N);
            for(int i=0;i<N;i++){
                par[i] = i;
                rnk[i] = 1;
            }
        }

        int root(int x){
            return par[x] = par[x] == x ? x : root(par[x]);
        }

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

        void unite(int x, int y){
            x = root(x); y = root(y);
            if(x == y) return;
            if(rnk[x] < rnk[y] || (rnk[x] == rnk[y] && y < x)){
                par[x] = y;
                rnk[y] += rnk[x];
            }else{
                par[y] = x;
                rnk[x] += rnk[y];
            }
        }

        int getrnk(int i){
            return rnk[i];
        }

    private:
        vector<int> par, rnk;
};

int main(){
    int N; cin >> N;
    UnionFind uf = UnionFind(N);

    int M; cin >> M;
    int A,B;
    for(int i=0;i<M;i++){
        cin >> A >> B;
        A--; B--;
        if(uf.same(A,B)) continue;
        uf.unite(A,B);
    }
    for(int i=0;i<N;i++){
        cout << uf.root(i) + 1 << endl;
    }
    return 0;
}