#include<iostream>
#include<string>
#include<algorithm>
#include<vector>
#include<iomanip>
#include<math.h>
#include<complex>
#include<queue>
#include<deque>
#include<stack>
#include<map>
#include<set>
#include<bitset>
#include<functional>
#include<assert.h>
#include<numeric>
using namespace std;
typedef pair<int,int> P;
typedef long long ll;
typedef long double ld;
const int inf=1e9+7;
const ll longinf=1LL<<60;
#define REP(i,m,n) for(ll i=(int)(m) ; i < (int) (n) ; ++i )
#define rep(i,n) REP(i,0,n)
#define F first
#define S second
constexpr char ln = '\n';

const int mx=200010;
const ll mod=1e9+7;

struct mint {
    ll x; // typedef long long ll;
    mint(ll x=0):x((x%mod+mod)%mod){}
    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 { mint res(*this); return res+=a; }
    mint operator-(const mint a) const { mint res(*this); return res-=a; }
    mint operator*(const mint a) const { mint res(*this); return res*=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 { mint res(*this); return res/=a; }
};

int main(){
  int n,m,l;
  cin >> n >> m >> l;
  vector<P> v[310];
  rep(i,m){
    int x,y,c; cin >> x >> y >> c; x--; y--;
    v[x].emplace_back(y,c);
  }

  vector<vector<vector<mint>>> dp(310, vector<vector<mint>>(310, vector<mint>(310,0)));
  rep(i,300){
    dp[0][i][0] = 1;
  }
  rep(i,n)rep(j,300)rep(k,l+1){
    for(auto it:v[j]){
      dp[i+1][it.S][k+it.S] += dp[i][j][k];
    }
  }
  mint ans = 0;
  rep(i,300){
    ans += dp[n][i][l];
  }
  cout << ans.x << ln;
  return 0;
}