#include <bits/stdc++.h>
using namespace std;
using ll = long long;
#define rep(i,n) for (int i = 0; i < (n); ++i)
#define rep2(i,m,n) for (int i = m; i < (n); ++i)
#define all(x) (x).begin(),(x).end()
template<class T> void chmin(T &a, const T &b) noexcept { if (b < a) a = b;}
template<class T> void chmax(T &a, const T &b) noexcept { if (a < b) a = b;}
template<class T> void drop(const T &x) { std::cout<<x<<endl; exit(0);}
void debug_out() { std::cout << "\n";}
template<class T, class... Args> void debug_out(const T &x, const Args &... args) { std::cout<<x<< " "; debug_out(args...);}
#ifdef _DEBUG
  #define debug(...) debug_out(__VA_ARGS__)
#else
  #define debug(...) 
#endif

struct InitIO{
  InitIO() {
    std::cin.tie(nullptr);
    std::ios_base::sync_with_stdio(false);
    std::cout << std::fixed << std::setprecision(15);
  }
}init_io;

const int mod = 1000000007;
// const int mod = 998244353;
struct mint {
  ll x;
  mint(ll x=0):x((x%mod+mod)%mod){}
  mint operator-() const { return mint(-x);}
  mint& operator+=(const mint a) {
    if ((x += a.x) >= mod) x -= mod;
    return *this;
  }
  mint& operator-=(const mint a) {
    if ((x += mod-a.x) >= mod) x -= mod;
    return *this;
  }
  mint& operator*=(const mint a) { (x *= a.x) %= mod; return *this;}
  mint operator+(const mint a) const { return mint(*this) += a;}
  mint operator-(const mint a) const { return mint(*this) -= a;}
  mint operator*(const mint a) const { return mint(*this) *= a;}
  mint pow(ll t) const {
    if (!t) return 1;
    mint a = pow(t>>1);
    a *= a;
    if (t&1) a *= *this;
    return a;
  }
  // for prime mod
  mint inv() const { return pow(mod-2);}
  mint& operator/=(const mint a) { return *this *= a.inv();}
  mint operator/(const mint a) const { return mint(*this) /= a;}
  bool operator==(const mint rhs) const { return x == rhs.x; }
  bool operator!=(const mint rhs) const { return x != rhs.x; }
  bool operator<(const mint &a) const{ return x<a.x;};
};
istream& operator>>(istream& is, mint& a) { return is >> a.x;}
ostream& operator<<(ostream& os, const mint& a) { return os << a.x;}

int main() {
  int n, m, k;
  cin >> n >> m >> k;
  using P = pair<int, int>;
  vector<vector<P> > G(300);
  rep(i,m) {
    int p, q, c;
    cin >> p >> q >> c; p--; q--;
    G[p].emplace_back(q,c);
  }
  vector<vector<vector<mint> > > dp(305, vector<vector<mint> >(305, vector<mint>(305, 0)));
  //つなげた数，最後のコード，複雑さの合計
  rep(i,300) dp[1][i][0] = 1;
  rep2(i, 1, n) {
    rep(from, 300) {
      for (auto&& e : G[from]) {
        int to = e.first, cost = e.second;
        rep(j, k+1) {
          if (j+cost > k) break;
          dp[i+1][to][j+cost] += dp[i][from][j];
        }
      }
    }
  }
  mint ans = 0;
  rep(i,300) ans += dp[n][i][k];
  cout << ans << endl;
  return 0;
}