#include <bits/stdc++.h>
#define rep(i,n) for(int i=(0);i<(n);i++)

using namespace std;

typedef long long ll;
typedef pair<ll, ll> pll;

template<class T> bool chmax(T &a, const T &b) { if (a<b) { a=b; return 1; } return 0; }
template<class T> bool chmin(T &a, const T &b) { if (a>b) { a=b; return 1; } return 0; }

int main(){
	cin.tie(0);
	ios::sync_with_stdio(false);

	ll n, m, k;
	cin >> n >> m >> k;

	int sz = 333;

	vector<pll> g[sz];
	rep(i, m){
		ll p, q, c;
		cin >> p >> q >> c;

		g[p].push_back({q, c});	
	}

	ll dp[n][sz][k+1];
	rep(i, n) rep(j, sz) rep(l, k+1) dp[i][j][l] = 0;

	ll MOD = 1e9+7;
	rep(i, sz) dp[0][i][0] = 1;
	rep(i, n-1){
		rep(j, sz){
			rep(l, k+1){
				for(pll x : g[j]){
					
					ll q = x.first, c = x.second;
					if(l+c <= k) {
						// cout << i << "," << j << "," << l << endl;
						dp[i+1][q][l+c] += dp[i][j][l];
						dp[i+1][q][l+c] %= MOD;
					}
				}
			}
		}
	}

	ll ans = 0;
	rep(j, 301){
		// cout << j << "," << dp[n-1][j][k] << endl;
		ans += dp[n-1][j][k];
		ans %= MOD;
	}

	cout << ans << endl;
}