#include <bits/stdc++.h>

using namespace std;

const int NMAX = 1e5;
const long long INF = 1e18;

long long minDist[NMAX + 1];

vector <pair<int, int>> edges[NMAX + 1];
int viz[NMAX + 1];

int main() {
    ifstream fin( "bfs.in" );
    ofstream fout( "bfs.out" );

    int n, m;
    fin >> n >> m;
    for ( int i = 1, a, b, c; i <= m; i ++ ) {
        fin >> a >> b;
        edges[a].push_back( {b, 1} );
    }

    priority_queue <pair <long long, int>> pq;

    for ( int i = 1; i <= n; i ++ ) {
        minDist[i] = INF;
    }
    minDist[1] = 0;
    pq.push( {0, 1} );
    while ( !pq.empty() ) {
        int node = pq.top().second;
        pq.pop();
        if ( !viz[node] ) {
            viz[node] = true;
            for ( auto e : edges[node] ) {
                if ( minDist[node] + e.second < minDist[e.first] ) {
                    minDist[e.first] = minDist[node] + e.second;
                    pq.push( {-minDist[e.first], e.first} );
                }
            }
        }
    }
    for ( int i = 2; i <= n; i ++ ) {
        if ( minDist[i] == INF ) minDist[i] = -1;
        fout << minDist[i] << ' ';
    }
    fout << '\n';
    return 0;
}