#include <fstream>

using namespace std;
ifstream cin ("bellmanford.in");
ofstream cout ("bellmanford.out");
int t[3][250010],start[250010],d[250010],viz[50010],n,m,coada[500010],fr[50010];
bool ok=true;
void citire ()
{
    cin>>n>>m; int x;
    for(int i=1;i<=m;i++)
    {
        cin>>x>>t[0][i]>>t[2][i];
        t[1][i]=start[x]; start[x]=i;
    }
}
void init ()
{
    for(int i=2;i<=n;i++)
        d[i]=300000000;
        coada[1]=1;
}
void ford ()
{
    int pi=1,ps=1;
    while(ps<=pi)
    {   int x=coada[ps]; viz[x]=0;
        int p=start[x];
        while(p!=0)
        {
            if(d[x]+t[2][p]<d[t[0][p]])
            {
                d[t[0][p]]=d[x]+t[2][p];
                if(d[1]<0) {ok=false;return ;}
                if(viz[t[0][p]]==0) { viz[t[0][p]]=1; pi++; coada[pi]=t[0][p]; fr[t[0][p]]++; if(fr[t[0][p]]>m) {ok=false;return ; }}
            } p=t[1][p];
        } ps++;
    }
}
void scrie ()
{
    if(ok==false) cout<<"Ciclu negativ!";
    else
        for(int i=2;i<=n;i++) { if(d[i]==300000000) d[i]=0; cout<<d[i]<<" ";}
}
int main()
{
    citire();
    init();
    ford();
    scrie();
    cin.close();
    cout.close();
    return 0;
}