#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define int long long
const int MOD = 1e9 + 7;
const int INF = 1e15;
const int N = 1e6;
int n, m, k, a, b, c, d, h, l, r, q, u, v, x, y;
void solve() {
cin >> n >> q;
vector<int> arr(n+1, 0);
while(q--) {
cin >> a >> b >> c;
arr[a] = max(arr[a], c);
arr[b] = max(arr[b], c);
}
for(int i = 1; i<=n; i++) {
if(!arr[i]) cout << 1000000000 << " ";
else cout << arr[i] << " ";
}
}
int32_t main() {
ios::sync_with_stdio(false);
cout.tie(0); cin.tie(0);
int tc = 1;
// cin >> tc;
while(tc--) {
solve();
cout << "\n";
}
return 0;
}
