#include<fstream>
#include<vector>
#include<queue>
#define inf 300000000
using namespace std;
ifstream fin("bellmanford.in");
ofstream fout("bellmanford.out");

int n, m, nr[250008],cmin[50008];
struct vfc
{
    int x,cost,ord;
};
vector<vfc> l[50008];
queue<int> q;

void citire();
void bellman();
void afisare();

int main()
{
    citire();
    bellman();
    return 0;
}

void citire()
{
    int x,y,c,i;
    vfc save;
    fin>>n>>m;
    for(i=1; i<=m; i++)
    {
        fin>>x>>y>>c;
        save.cost=c;
        save.ord=i;
        save.x=y;
        l[x].push_back(save);
    }
    for(i=1;i<=n;i++)
        cmin[i]=inf;
}

void bellman()
{
    int i,modif=0,nod;
    vfc save;
    q.push(1);
    cmin[1]=0;
    while(!modif && !q.empty())
    {
        nod=q.front();
        q.pop();
        for(i=0;i<l[nod].size();i++)
        {
            save=l[nod][i];
            if(cmin[nod]+save.cost<cmin[save.x])
            {
                cmin[save.x]=cmin[nod]+save.cost;
                q.push(save.x);
                nr[save.ord]++;
                if (nr[save.ord]==n)
                {
                    modif=1;
                    break;
                }
            }
        }
    }
    if(modif)
        fout<<"Ciclu negativ!";
    else
        afisare();
}

void afisare()
{
    int i;
    for(i=2;i<=n;i++)
        fout<<cmin[i]<<' ';
}