#include <fstream>
#include <vector>
#include <queue>
using namespace std;

ifstream fin("bellmanford.in");
ofstream fout("bellmanford.out");

int incoada[50001],d[50001],viz[50001],n;
queue<int>c;
struct arc
{
    int nod, cost;
};
vector<arc>v[50001];
const int INF= 1e9;
bool bellmanford(int nod)
{
    for(int i=1; i<=n; i++)
        d[i]=INF;
    d[nod]=0;
    c.push(nod);
    incoada[nod]=1;
    while(!c.empty())
    {
        int x=c.front();
        viz[x]++;
        if(viz[x]>=n)
            return false;
        c.pop();
        incoada[x]=0;
    for(int i=0; i<v[x].size(); i++)
    {
        if(d[v[x][i].nod]>d[x]+v[x][i].cost)
        {
            d[v[x][i].nod]=d[x]+v[x][i].cost;
            if(!incoada[v[x][i].nod])
                c.push(v[x][i].nod);
        }
    }
    }
    return true;
}
int main()
{
    int m,a,b,c;
    fin>>n>>m;
    for(int i=1; i<=m; i++)
    {
        fin>>a>>b>>c;
        arc aux;
        aux.nod=b;
        aux.cost=c;
        v[a].push_back(aux);
    }
    if(bellmanford(1))
        for(int i=2; i<=n; i++)
                fout<<d[i]<<" ";
    else
        fout<<"Ciclu negativ!";
    return 0;
}