#include <bits/stdc++.h>
typedef long long Long;

#define MAX 1001

#define PB push_back
#define MP make_pair
#define FF first
#define SS second

#define PII pair<int, int>
#define VI vector<int>

#define FOR(a, n) for(int i=a;i<n;i++)
#define FORn(a, n) for(int i=a;i<=n;i++)

#define mm(a, n) memset(a, n, sizeof(a))

#define PF printf
#define PC putchar
#define GC getchar

#define printCase cout<<"Case "<<i<<": "vagfol
#define printCaseC PF("Case %d: ", i)

#define II() ({int a; scanf("%d", &a); a;})
#define LI() ({Long a; scanf("%I64d", &a); a;})
#define DI() ({double a; scanf("%lf", &a); a;})

#define FastIO ios_base::sync_with_stdio(false); cin.tie(NULL);
//double pi=atan(1)*4;

using namespace std;
int G[MAX][MAX];
int n, e;
void Read()
{
    cin>>n>>e;
    FOR(0, e)
    {
        int u, v, c;
        cin>>u>>v>>c;
        G[u][v]=c;
    }
}
r
int main()
{
    #ifndef ONLINE_JUDGE
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
    #else
    #endif
    /* *******Bismillahir Rahmanir Rahim **** */
//    FastIO;
    Read();
    FWA();
    return 0;
}