#include <fstream>
#include <vector>
#include <deque>

using namespace std;

ifstream f("bellmanford.in");
ofstream g("bellmanford.out");

const int NMAX = 50005;
const int inf = 1e9;
struct muchie{
    int node, cost;
};
int n,m,dist[NMAX],cot[NMAX];
muchie z;
bool ciclu;
vector < muchie > v[NMAX];
deque < int > q;

void bellman(const int start_node){
    int nod,i;
    q.push_back(start_node);
    for(i = 1 ; i <= n ; i++)
        dist[i] = inf;
    dist[1] = 0;
    while(!q.empty()){
        nod = q.front();
        q.pop_front();
        for(i = 0 ; i < v[nod].size() && !ciclu; i++)
            if(dist[v[nod][i].node] > dist[nod] + v[nod][i].cost){
                dist[v[nod][i].node] = dist[nod] + v[nod][i].cost;
                q.push_back(v[nod][i].node);
                cot[v[nod][i].node]++;
                if(cot[v[nod][i].node] > n)
                    ciclu = 1;
            }
    }
}

int main(){
    int i, a, b, c;
    f >> n >> m;
    for(i = 1 ; i <= m ; i++){
        f >> a >> b >> c;
        z.node = b;
        z.cost = c;
        v[a].push_back(z);
    }

    bellman(1);

    if(ciclu)
        g << "Ciclu negativ!" << "\n";
    else{
        for(i = 2 ; i <= n ; i++)
            g << dist[i] << " ";

    }

    return 0;
}