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

public class Main {
    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();
        ArrayList<HashMap<Integer, Integer>> graph = new ArrayList<>();
        for (int i = 0; i < 300; i++) {
            graph.add(new HashMap<>());
        }
        for (int i = 0; i < m; i++) {
            graph.get(sc.nextInt() - 1).put(sc.nextInt() - 1, sc.nextInt());
        }
        int[][][] dp = new int[n][300][k + 1];
        for (int i = 0; i < 300; i++) {
            dp[0][i][0] = 1;
        }
        for (int i = 0; i < n - 1; i++) {
            for (int j = 0; j < 300; j++) {
                for (int x : graph.get(j).keySet()) {
                    int value = graph.get(j).get(x);
                    for (int s = k - value; s >= 0; s--) {
                        dp[i + 1][x][s + value] += dp[i][j][s];
                        dp[i + 1][x][s + value] %= MOD;
                    }
                }
            }
        }
        int ans = 0;
        for (int i = 0; i < 300; i++) {
            ans += dp[n - 1][i][k];
            ans %= MOD;
        }
        System.out.println(ans);
    }
}
class Utilities {
    static String arrayToLineString(Object[] arr) {
        return Arrays.stream(arr).map(x -> x.toString()).collect(Collectors.joining("\n"));
    }
    
    static String arrayToLineString(int[] arr) {
        return String.join("\n", Arrays.stream(arr).mapToObj(String::valueOf).toArray(String[]::new));
    }
}
class Scanner {
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
    StringTokenizer st = new StringTokenizer("");
    StringBuilder sb = new StringBuilder();
    
    public Scanner() throws Exception {
        
    }
    
    public int nextInt() throws Exception {
        return Integer.parseInt(next());
    }
    
    public long nextLong() throws Exception {
        return Long.parseLong(next());
    }
    
    public double nextDouble() throws Exception {
        return Double.parseDouble(next());
    }
    
    public int[] nextIntArray() throws Exception {
        return Stream.of(br.readLine().split(" ")).mapToInt(Integer::parseInt).toArray();
    }
    
    public String next() throws Exception {
        while (!st.hasMoreTokens()) {
            st = new StringTokenizer(br.readLine());
        }
        return st.nextToken();
    }
    
}