import java.io.*;
import java.util.*;
import java.util.function.*;
import java.util.stream.*;

public class Main {
    static List<Map<Integer, Integer>> graph = new ArrayList<>();
    static int[][][] dp;
    static final int MOD = 1000000007;
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner();
        int n = sc.nextInt();
        int m = sc.nextInt();
        int k = sc.nextInt();
        for (int i = 0; i < 300; i++) {
            graph.add(new HashMap<>());
        }
        for (int i = 0; i < m; i++) {
            int a = sc.nextInt() - 1;
            int b = sc.nextInt() - 1;
            int c = sc.nextInt();
            graph.get(b).put(a, c);
        }
        int ans = 0;
        dp = new int[n][300][k + 1];
        for (int[][] arr1 : dp) {
            for (int[] arr2 : arr1) {
                Arrays.fill(arr2, -1);
            }
        }
        for (int i = 0; i < 300; i++) {
            ans += dfw(n - 1, i, k);
            ans %= MOD;
        }
        System.out.println(ans);
    }
    
    static int dfw(int idx, int v, int w) {
        if (w < 0) {
            return 0;
        }
        if (idx == 0) {
            if (w == 0) {
                return 1;
            } else {
                return 0;
            }
        }
        if (dp[idx][v][w] < 0) {
            dp[idx][v][w] = 0;
            for (int x : graph.get(v).keySet()) {
                dp[idx][v][w] += dfw(idx - 1, x, w - graph.get(v).get(x));
                dp[idx][v][w] %= MOD;
            } 
        }
        return dp[idx][v][w];
    }
}
class Scanner {
    BufferedReader br;
    StringTokenizer st = new StringTokenizer("");
    StringBuilder sb = new StringBuilder();
    
    public Scanner() {
        try {
            br = new BufferedReader(new InputStreamReader(System.in));
        } catch (Exception e) {
            
        }
    }
    
    public int nextInt() {
        return Integer.parseInt(next());
    }
    
    public long nextLong() {
        return Long.parseLong(next());
    }
    
    public double nextDouble() {
        return Double.parseDouble(next());
    }
    
    public String next() {
        try {
            while (!st.hasMoreTokens()) {
                st = new StringTokenizer(br.readLine());
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            return st.nextToken();
        }
    }
    
}