#include <bits/stdc++.h>

using namespace std;

#if 1
    #define pv(x) std::cerr<<#x<<" = "<<(x)<<"; ";std::cerr.flush()
    #define pn std::cerr<<std::endl
#else
    #define pv(x)
    #define pn
#endif

#ifdef INFOARENA
    ifstream in("bellmanford.in");
    ofstream out("bellmanford.out");
#else
    #define in cin
    #define out cout
#endif

using ll = long long;
using ull = unsigned long long;
using uint = unsigned int;
using ld = long double;
using pii = pair<int,int>;
using pll = pair<ll,ll>;
using pld = pair<ld, ld>;
#define pb push_back
const double PI = 3.14159265358979323846264338327950288419716939937510582097494459230781640628620899862;
const int inf_int = 1e9 + 5;
const ll inf_ll = 1e18 + 5;
const int NMax = 5e4 + 5;
const int dx[] = {-1,0,0,+1}, dy[] = {0,-1,+1,0};
const double EPS = 1e-8;

int dist[NMax];
bool inQueue[2][NMax];
vector<pii> adj[NMax];

int main() {
    cin.sync_with_stdio(false);
    cin.tie(0);

    int N,M;
    in >> N >> M;
    for (int i = 1; i <= M; ++i) {
        int x,y,c;
        in >> x >> y >> c;
        adj[x].pb({y, c});
    }

    for (int i = 2; i <= N; ++i) {
        dist[i] = inf_int;
    }
    dist[1] = 0;
    
    bool update = false;
    queue<int> Q[2];
    Q[1].push(1);
    for (int i = 1; i <= N; ++i) {
        update = false;
        int here = i % 2, there = here ^ 1;
        while (Q[here].size()) {
            int node = Q[here].front();
            Q[here].pop();
            inQueue[here][node] = false;

            for (auto& p : adj[node]) {
                int nxt = p.first, cost = p.second;
                if (dist[nxt] > dist[node] + cost) {
                    dist[nxt] = dist[node] + cost;
                    update = true;

                    if (!inQueue[there][node]) {
                        Q[there].push(nxt);
                        inQueue[there][nxt] = true;
                    }
                }
            }
        }
    }

    if (update) {
        out << "Ciclu negativ!\n";
    }
    else {
        for (int i = 2; i <= N; ++i) {
            out << dist[i] << ' ';
        }
    }

    return 0;
}