#include <string>
#include <vector>
#include <algorithm>
#include <numeric>
#include <set>
#include <map>
#include <queue>
#include <iostream>
#include <sstream>
#include <cstdio>
#include <cmath>
#include <ctime>
#include <cstring>
#include <cctype>
#include <cassert>
#include <limits>
#include <functional>
#define rep(i,n) for(int (i)=0;(i)<(int)(n);++(i))
#define rer(i,l,u) for(int (i)=(int)(l);(i)<=(int)(u);++(i))
#define reu(i,l,u) for(int (i)=(int)(l);(i)<(int)(u);++(i))
#if defined(_MSC_VER) || __cplusplus > 199711L
#define aut(r,v) auto r = (v)
#else
#define aut(r,v) __typeof(v) r = (v)
#endif
#define each(it,o) for(aut(it, (o).begin()); it != (o).end(); ++ it)
#define all(o) (o).begin(), (o).end()
#define pb(x) push_back(x)
#define mp(x,y) make_pair((x),(y))
#define mset(m,v) memset(m,v,sizeof(m))
#define INF 0x3f3f3f3f
#define INFL 0x3f3f3f3f3f3f3f3fLL
using namespace std;
typedef vector<int> vi; typedef pair<int,int> pii; typedef vector<pair<int,int> > vpii; typedef long long ll;
template<typename T, typename U> inline void amin(T &x, U y) { if(y < x) x = y; }
template<typename T, typename U> inline void amax(T &x, U y) { if(x < y) x = y; }


void findCCs(int N, const vector<pair<int, int> > &edges, vector<int> &counts) {
	vector<int> deg(N + 1, 0);
	for(pii e : edges)
		++ deg[e.first], ++ deg[e.second];
	rep(i, N) deg[i + 1] += deg[i];
	vector<int> to(edges.size() * 2, -1);
	for(pii e : edges) {
		to[-- deg[e.first]] = e.second;
		to[-- deg[e.second]] = e.first;
	}
	counts.assign(N + 1, 0);
	vector<bool> vis(N, false);
	vector<int> q(N);
	int t = 0;
	rep(s, N) if(!vis[s]) {
		int head = t;
		vis[s] = true;
		q[t ++] = s;
		for(int h = head; h < t; ++ h) {
			int i = q[h];
			for(int j = deg[i]; j < deg[i + 1]; ++ j) {
				int k = to[j];
				if(!vis[k]) {
					vis[k] = true;
					q[t ++] = k;
				}
			}
		}
		++ counts[t - head];
	}
}

void update(int *dp, int n, int s, int t) {
	for(int i = n; i >= 0; -- i)
		amin(dp[i + s], dp[i] + t);
}

int main() {
	int N; int M;
	while(~scanf("%d%d", &N, &M)) {
		vector<pair<int, int> > edges(M);
		rep(i, M) {
			int u; int v;
			scanf("%d%d", &u, &v), -- u, -- v;
			edges[i] = {u, v};
		}
		vector<int> counts;
		findCCs(N, edges, counts);
		vi dp(N + 1, INF);
		dp[0] = 0;
		int sum = 0;
		rer(i, 1, N) {
			int n = counts[i];
			while(n > 0) {
				int m = (n + 1) / 2;
				update(&dp[0], sum, i * m, m);
				sum += i * m;
				n -= m;
			}
		}
		rer(i, 1, N)
			printf("%d\n", dp[i] == INF ? -1 : dp[i] - 1);
	}
	return 0;
}