import java.util.*;
import java.io.*;
 
public class Main {
    static int n,m,k;
    static ArrayList<HashMap<Integer,HashSet<Integer>>> map;
    static long mod = (long)Math.pow(10,9)+7;
    public static void main(String[] args) throws Exception {
        FastScanner sc = new FastScanner(System.in);
        n = sc.nextInt();
        m = sc.nextInt();
        k = sc.nextInt();
        map = new ArrayList<>();
        for(int i = 0; i < 300; i++){
            map.add(new HashMap<>());
        }
        for(int i = 0; i < m; i++){
            int p = sc.nextInt()-1;
            int q = sc.nextInt()-1;
            int c = sc.nextInt();
            if(map.get(p).containsKey(q)){
                map.get(p).get(q).add(c);
            }else{
                HashSet<Integer> tmp = new HashSet<Integer>();
                tmp.add(c);
                map.get(p).put(q,tmp);
            }
        }
        long ans = 0;
        for(int i = 0; i < 300; i++){
            ans += dfs(i,0,1);
            ans %= mod;
        }
        System.out.println(ans);
    }
    
    public static int dfs(int now, int cost, int cnt){
        if(cnt == n){
            return cost == k ? 1 : 0;
        }
        int ret = 0;
        for(Map.Entry<Integer,HashSet<Integer>> e : map.get(now).entrySet()){
            int q = e.getKey();
            HashSet<Integer> c = e.getValue();
            for(int cc : c){
                if(cost + cc <= k){
                    ret += dfs(q,cost+cc,cnt+1);
                }
            }
        }
        return ret;
    }
}

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;
    } 
}