typedef long long ll;
typedef long double ld;
#include <bits/stdc++.h>
using namespace std;
const ll MOD = 1e9+7;
int main() {
    ll n,m,k;
    std::cin >> n>>m>>k;
    vector<vector<pair<ll,ll>>> edges(300);
    for (int i = 0; i < m; i++) {
        ll p,q,c;
        std::cin >> p>>q>>c;
        p--;q--;
        edges[p].push_back({q,c});
    }
    vector<vector<vector<ll>>> dp(n+1,vector<vector<ll>>(300,vector<ll>(k+1,0)));
    for (int i = 0; i < 300; i++) {
        dp[0][i][0] = 1;
    }
    
    for (int i = 0; i < n-1; i++) {
        for (int j = 0; j < 300; j++) {
            for (auto e : edges[j]) {
                for (int ii = 0; ii <= k; ii++) {
                    if(ii-e.second>=0) dp[i+1][e.first][ii] += dp[i][j][ii-e.second];
                    dp[i+1][e.first][ii] %= MOD;
                }
            }
        }
    }
    
    ll ans = 0;
    for (int i = 0; i < 300; i++) {
        ans += dp[n-1][i][k];
        ans %= MOD;
    }
    
    std::cout << ans << std::endl;
}