#include <cstdio>
#include <vector>
#include <set>
#include <algorithm>
using namespace std;
#define Max 50001
#define Inf 0xffffff

vector<pair<int,int> >g[Max];
set<int>s,v;

int n,d[Max];

void bellman()
{
    int x,y;
    for(int i=2;i<=n;i++) d[i] = Inf;
    s.insert(1);
    for(int k=1;k<=n;k++)
    {
        while(s.size() > 0)
        {
            x = *s.begin(); s.erase(s.begin());
            for(int i=0;i<g[x].size();i++)
            {
                y = g[x][i].first;
                if(d[y] > d[x] + g[x][i].second)
                {
                    d[y] = d[x] + g[x][i].second;
                    v.insert(y);
                }
            }
        }
        swap(s,v);
    }
    if(s.size() > 0)printf("Ciclu negativ!"); else
    for(int i=2;i<=n;i++)printf("%d ",d[i]);
}

int main()
{
    int m,x,y,c;
    freopen("test.in","r",stdin);
    freopen("test.out","w",stdout);
        scanf("%d %d",&n,&m);
        while(m--)
        {
            scanf("%d %d %d",&x,&y,&c);
            g[x].push_back(make_pair(y,c));
        }
    bellman();

    return 0;
}