import java.util.*;
import java.io.*;
 
public class Main {
    static int n,m,k;
    static ArrayList<Music> li;
    public static void main(String[] args) throws Exception {
        FastScanner sc = new FastScanner(System.in);
        long mod = (long)Math.pow(10,9)+7;
        n = sc.nextInt();
        m = sc.nextInt();
        k = sc.nextInt();
        li = new ArrayList<>();
        for(int i = 0; i < m; i++){
            int p = sc.nextInt()-1;
            int q = sc.nextInt()-1;
            int c = sc.nextInt();
            li.add(new Music(p,q,c));
        }
        Collections.sort(li);
        long[][][] dp = new long[300][n+1][k+2];
        for(int i = 0; i < 300; i++){
            dp[i][1][0] = 1;
        }
        for(int i = 2; i <= n; i++){
            for(Music m : li){
                for(int j = k-m.c; j >= 0; j--){
                    dp[m.q][i][j+m.c] += dp[m.p][i-1][j];
                    dp[m.q][i][j+m.c] %= mod;
                }
            }
        }
        long ans = 0;
        for(int i = 0; i < 300; i++){
            ans += dp[i][n][k];
            ans %= mod;
        }
        System.out.println(ans);
    }
}

class Music implements Comparable<Music>{
    int p,q,c;
    public Music(int p, int q, int c){
        this.p = p;
        this.q = q;
        this.c = c;
    } 
    
    public int compareTo(Music m){
        if(this.c > m.c){
            return -1;
        }else if(this.c < m.c){
            return 1;
        }else{
            return 0;
        }
    }
}

class FastScanner {
    private BufferedReader reader = null;
    private StringTokenizer tokenizer = null;
    public FastScanner(InputStream in) {
        reader = new BufferedReader(new InputStreamReader(in));
        tokenizer = null;
    }

    public String next() {
        if (tokenizer == null || !tokenizer.hasMoreTokens()) {
            try {
                tokenizer = new StringTokenizer(reader.readLine());
            } catch (IOException e) {
                throw new RuntimeException(e);
            }
        }
        return tokenizer.nextToken();
    }

    public String nextLine() {
        if (tokenizer == null || !tokenizer.hasMoreTokens()) {
            try {
                return reader.readLine();
            } catch (IOException e) {
                throw new RuntimeException(e);
            }
        }
        return tokenizer.nextToken("\n");
    }

    public long nextLong() {
        return Long.parseLong(next());
    }

    public int nextInt() {
        return Integer.parseInt(next());
    }

    public double nextDouble() {
         return Double.parseDouble(next());
    }
    
    public String[] nextArray(int n) {
        String[] a = new String[n];
        for (int i = 0; i < n; i++)
            a[i] = next();
        return a;
    }

    public int[] nextIntArray(int n) {
        int[] a = new int[n];
        for (int i = 0; i < n; i++)
            a[i] = nextInt();
        return a;
    }

    public long[] nextLongArray(int n) {
        long[] a = new long[n];
        for (int i = 0; i < n; i++)
            a[i] = nextLong();
        return a;
    } 
}