#pragma GCC optimize("Ofast") #include using namespace std; typedef long long int ll; typedef unsigned long long int ull; mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count()); ll myRand(ll B) { return (ull)rng() % B; } template struct static_modint { using mint = static_modint; int x; static_modint() : x(0) {} static_modint(int64_t y) : x(y >= 0 ? y % mod : (mod - (-y) % mod) % mod) {} mint &operator+=(const mint &rhs) { if ((x += rhs.x) >= mod) x -= mod; return *this; } mint &operator-=(const mint &rhs) { if ((x += mod - rhs.x) >= mod) x -= mod; return *this; } mint &operator*=(const mint &rhs) { x = (int)(1LL * x * rhs.x % mod); return *this; } mint &operator/=(const mint &rhs) { return *this = *this * rhs.inv(); } mint pow(long long n) const { mint _x = *this, r = 1; while (n) { if (n & 1) r *= _x; _x *= _x; n >>= 1; } return r; } mint inv() const { return pow(mod - 2); } mint operator+() const { return *this; } mint operator-() const { return mint() - *this; } friend mint operator+(const mint &lhs, const mint &rhs) { return mint(lhs) += rhs; } friend mint operator-(const mint &lhs, const mint &rhs) { return mint(lhs) -= rhs; } friend mint operator*(const mint &lhs, const mint &rhs) { return mint(lhs) *= rhs; } friend mint operator/(const mint &lhs, const mint &rhs) { return mint(lhs) /= rhs; } friend bool operator==(const mint &lhs, const mint &rhs) { return lhs.x == rhs.x; } friend bool operator!=(const mint &lhs, const mint &rhs) { return lhs.x != rhs.x; } friend ostream &operator<<(ostream &os, const mint &p) { return os << p.x; } friend istream &operator>>(istream &is, mint &a) { int64_t t; is >> t; a = static_modint(t); return (is); } }; const unsigned int mod = 998244353; using modint = static_modint; modint mod_pow(ll n, ll x) { return modint(n).pow(x); } modint mod_pow(modint n, ll x) { return n.pow(x); } modint dp[10][10][10][10][10][10][6]; int main() { ios::sync_with_stdio(false); cin.tie(nullptr); int n, m, k; cin >> n >> m >> k; vector> g(n); for (int i = 0; i < m; ++i) { int x, y; cin >> x >> y; x -= 1, y -= 1; g[x].push_back(y); g[y].push_back(x); } for (int i = 0; i < n; ++i) { vector u(6); u[i] = 1; dp[u[0]][u[1]][u[2]][u[3]][u[4]][u[5]][i] = 1; } for (int i = 0; i <= k; ++i) { for (int j = 0; j <= k; ++j) { for (int l = 0; l <= k; ++l) { for (int x = 0; x <= k; ++x) { for (int y = 0; y <= k; ++y) { for (int z = 0; z <= k; ++z) { for (int s = 0; s < n; ++s) { auto val = dp[i][j][l][x][y][z][s]; if (val == 0) continue; for (int t : g[s]) { if (t == 0) dp[i + 1][j][l][x][y][z][t] += dp[i][j][l][x][y][z][s]; if (t == 1) dp[i][j + 1][l][x][y][z][t] += dp[i][j][l][x][y][z][s]; if (t == 2) dp[i][j][l + 1][x][y][z][t] += dp[i][j][l][x][y][z][s]; if (t == 3) dp[i][j][l][x + 1][y][z][t] += dp[i][j][l][x][y][z][s]; if (t == 4) dp[i][j][l][x][y + 1][z][t] += dp[i][j][l][x][y][z][s]; if (t == 5) dp[i][j][l][x][y][z + 1][t] += dp[i][j][l][x][y][z][s]; } } } } } } } } modint res = 0; vector u(6, 0); for (int i = 0; i < n; ++i) { u[i] = k; } for (int i = 0; i < n; ++i) { res += dp[u[0]][u[1]][u[2]][u[3]][u[4]][u[5]][i]; } cout << res << endl; }