/*** author: yuji9511 ***/
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using lpair = pair<ll, ll>;
const ll MOD = 1e9+7;
const ll INF = 1e18;
#define rep(i,m,n) for(ll i=(m);i<(n);i++)
#define rrep(i,m,n) for(ll i=(m);i>=(n);i--)
#define printa(x,n) for(ll i=0;i<n;i++){cout<<(x[i])<<" \n"[i==n-1];};
void print() {}
template <class H,class... T>
void print(H&& h, T&&... t){cout<<h<<" \n"[sizeof...(t)==0];print(forward<T>(t)...);}
ll dp[310][310][310] = {};


void solve(){
    ll N,M,K;
    cin >> N >> M >> K;
    ll P[310], Q[310], C[310];
    ll dist[310][310] = {};
    rep(i,0,300){
        rep(j,0,300){
            if(i == j) dist[i][j] = 0;
            else dist[i][j] = INF;
        }
    }
    rep(i,0,M){
        cin >> P[i] >> Q[i] >> C[i];
        P[i]--; Q[i]--;
        dist[P[i]][Q[i]] = C[i];
    }

    
    rep(i,0,300){
        dp[0][i][0] = 1;
    }
    rep(n,0,N-1){
        rep(i,0,M){
            rep(k,0,K+1){
                if(k - C[i] >= 0){
                    dp[n+1][Q[i]][k] += dp[n][P[i]][k - C[i]];
                    dp[n+1][Q[i]][k] %= MOD;
                }
            }
        }
    }
    ll ans = 0;
    rep(i,0,300){
        ans += dp[N-1][i][K];
        ans %= MOD;
    }
    print(ans);

}

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