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> 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 = 1; i < n; i++) { for (int j = 0; j < 300; j++) { for (int x : graph.get(j).keySet()) { int y = graph.get(j).get(x); for (int a = 0; a + y <= k; a++) { dp[i][x][a + y] += dp[i - 1][j][a]; dp[i][x][a + y] %= 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(); } }