#include using namespace std; using ll = long long; using ld = long double; using P = pair; using Pld = pair; using Vec = vector; using VecP = vector

; using VecB = vector; using VecC = vector; using VecD = vector; using VecS = vector; using Graph = vector; template using Vec1 = vector; template using Vec2 = vector >; #define REP(i, m, n) for(ll i = (m); i < (n); ++i) #define REPN(i, m, n) for(ll i = (m); i <= (n); ++i) #define REPR(i, m, n) for(ll i = (m)-1; i >= (n); --i) #define REPNR(i, m, n) for(ll i = (m); i >= (n); --i) #define rep(i, n) REP(i, 0, n) #define repn(i, n) REPN(i, 1, n) #define repr(i, n) REPR(i, n, 0) #define repnr(i, n) REPNR(i, n, 1) #define all(s) (s).begin(), (s).end() #define pb push_back #define fs first #define sc second template bool chmax(T &a, const T b){if(a < b){a = b; return true;} return false;} template bool chmin(T &a, const T b){if(a > b){a = b; return true;} return false;} template ll pow2(const T n){return (1LL << n);} template void cosp(const T n){cout << n << ' ';} void co(void){cout << '\n';} template void co(const T n){cout << n << '\n';} template void co(pair p){cout << p.fs << ' ' << p.sc << '\n';} template void co(const Vec1 &v){for(T i : v) cosp(i); co();} template void co(initializer_list v){for(T i : v) cosp(i); co();} void ce(void){cerr << '\n';} template void ce(const T n){cerr << n << '\n';} template void cesp(const T n){cerr << n << ' ';} template void ce(initializer_list v){for(T i : v) cesp(i); ce();} void sonic(){ios::sync_with_stdio(false); cin.tie(0);} void setp(const ll n){cout << fixed << setprecision(n);} constexpr int INF = 1e9+1; constexpr ll LINF = 1e18+1; constexpr ll MOD = 1e9+7; // constexpr ll MOD = 998244353; constexpr ld EPS = 1e-11; const double PI = acos(-1); template struct ModInt { int x; ModInt() : x(0) {} ModInt(int64_t y) : x(y >= 0 ? y % mod : (mod - (-y) % mod) % mod) {} ModInt &operator+=(const ModInt &p) { if((x += p.x) >= mod) x -= mod; return *this; } ModInt &operator-=(const ModInt &p) { if((x += mod - p.x) >= mod) x -= mod; return *this; } ModInt &operator*=(const ModInt &p) { x = (int) (1LL * x * p.x % mod); return *this; } ModInt &operator/=(const ModInt &p) { *this *= p.inverse(); return *this; } ModInt operator-() const { return ModInt(-x); } ModInt operator+(const ModInt &p) const { return ModInt(*this) += p; } ModInt operator-(const ModInt &p) const { return ModInt(*this) -= p; } ModInt operator*(const ModInt &p) const { return ModInt(*this) *= p; } ModInt operator/(const ModInt &p) const { return ModInt(*this) /= p; } bool operator==(const ModInt &p) const { return x == p.x; } bool operator!=(const ModInt &p) const { return x != p.x; } ModInt inverse() const { int a = x, b = mod, u = 1, v = 0, t; while(b > 0) { t = a / b; swap(a -= t * b, b); swap(u -= t * v, v); } return ModInt(u); } ModInt pow(int64_t n) const { ModInt res(1), mul(x); while(n > 0) { if(n & 1) res *= mul; mul *= mul; n >>= 1; } return res; } friend ostream &operator<<(ostream &os, const ModInt &p) { return os << p.x; } friend istream &operator>>(istream &is, ModInt &a) { int64_t t; is >> t; a = ModInt< mod >(t); return (is); } static int get_mod() { return mod; } }; using Mint = ModInt; Mint memo[300][301][301]; bool memo_f[300][301][301]; Vec2

graph(300); Mint f(ll a, ll r, ll l) { if (r == 0 && l == 0) return 1; else if(r < 0 || l <= 0) return 0; if (memo_f[a][r][l]) return memo[a][r][l]; Mint res = 0; for (P i : graph[a]) { res += f(i.fs, r - i.sc, l - 1); } memo_f[a][r][l] = true; return memo[a][r][l] = res; } int main(void){ ll n, m, k; cin >> n >> m >> k; rep(i, m) { ll p, q, c; cin >> p >> q >> c; --p, --q; graph[p].push_back({q, c}); } rep(i, 300) rep(j, 301) rep(k, 301) memo_f[i][j][k] = false; Mint ans = 0; rep(i, 300) ans += f(i, k, n - 1); co(ans); return 0; }