import java.io.*; import java.util.*; import java.util.stream.*; public class Main { static ArrayList> 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); } dp = new int[n][300][k + 1]; for (int[][] arr1 : dp) { for (int[] arr2 : arr1) { Arrays.fill(arr2, -1); } } int ans = 0; 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 c, int v) { if (v < 0) { return 0; } if (idx == 0) { if (v == 0) { return 1; } else { return 0; } } if (dp[idx][c][v] < 0) { dp[idx][c][v] = 0; for (int x : graph.get(c).keySet()) { dp[idx][c][v] += dfw(idx - 1, x, v - graph.get(c).get(x)); } } return dp[idx][c][v]; } } 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(); } }