#include <bits/stdc++.h>
using namespace std;
long long MOD = 1000000007;
int main(){
  int N, M, K;
  cin >> N >> M >> K;
  vector<vector<pair<int, int>>> E(300);
  for (int i = 0; i < M; i++){
    int P, Q, C;
    cin >> P >> Q >> C;
    P--;
    Q--;
    E[P].push_back(make_pair(C, Q));
  }
  vector<vector<vector<long long>>> dp(N, vector<vector<long long>>(300, vector<long long>(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 (int k = 0; k <= K; k++){
        for (auto P : E[j]){
          int com = P.first;
          int nxt = P.second;
          if (k + com <= K){
            dp[i + 1][nxt][k + com] += dp[i][j][k];
            dp[i + 1][nxt][k + com] %= MOD;
          }
        }
      }
    }
  }
  long long ans = 0;
  for (int i = 0; i < 300; i++){
    ans += dp[N - 1][i][K];
  }
  ans %= MOD;
  cout << ans << endl;
}