#include #define rep(i,n) for (int i = 0; i < (int)(n); i ++) #define irep(i,n) for (int i = (int)(n) - 1;i >= 0;--i) using namespace std; using ll = long long; using PL = pair; using P = pair; constexpr int INF = 1000000000; constexpr long long HINF = 1000000000000000; constexpr long long MOD = 1000000007;// = 998244353; constexpr double EPS = 1e-4; constexpr double PI = 3.14159265358979; template struct ModInt { long long x; ModInt(long long x = 0) :x((x%Modulus + Modulus)%Modulus) {} constexpr ModInt &operator+=(const ModInt a) {if ((x += a.x) >= Modulus) x -= Modulus; return *this;} constexpr ModInt &operator-=(const ModInt a) {if ((x += Modulus - a.x) >= Modulus) x -= Modulus; return *this;} constexpr ModInt &operator*=(const ModInt a) {(x *= a.x) %= Modulus; return *this;} constexpr ModInt &operator/=(const ModInt a) {return *this *= a.inverse();} constexpr ModInt operator+(const ModInt a) const {return ModInt(*this) += a.x;} constexpr ModInt operator-(const ModInt a) const {return ModInt(*this) -= a.x;} constexpr ModInt operator*(const ModInt a) const {return ModInt(*this) *= a.x;} constexpr ModInt operator/(const ModInt a) const {return ModInt(*this) /= a.x;} friend constexpr ostream& operator<<(ostream& os,const ModInt& a) {return os << a.x;} friend constexpr istream& operator>>(istream& is,ModInt& a) {return is >> a.x;} ModInt inverse() const {// x ^ (-1) long long a = x,b = Modulus,p = 1,q = 0; while (b) {long long d = a/b; a -= d*b; swap(a,b); p -= d*q; swap(p,q);} return ModInt(p); } ModInt pow(long long N) {// x ^ N ModInt a = 1; while (N) { if (N&1) a *= *this; *this *= *this; N >>= 1; } return a; } }; using mint = ModInt<998244353>; struct Combination { int N; //using mint = ModInt<1000000007>; //using mint = ModInt<998244353>; vector fact,ifact,invs; Combination(int N): N(N) { fact.resize(N + 1); ifact.resize(N + 1); fact[0] = fact[1] = 1; ifact[0] = ifact[1] = 1; for (int i = 2;i < N + 1;++i) {fact[i] = fact[i - 1] * i;} ifact[N] = fact[N].inverse(); for (int i = N;i >= 1;--i) {ifact[i - 1] = ifact[i] * i;} } void invs_build() { invs.resize(N + 1); invs[1] = 1; for (int i = 2;i < N + 1;++i) invs[i] = fact[i] * ifact[i - 1]; } mint operator()(int n, int k) { if (k < 0 || k > n) return 0; return fact[n]*ifact[k]*ifact[n - k]; } mint npk(int n,int k) { if (k < 0 || k > n) return 0; return fact[n]*ifact[n - k]; } }; int main() { cin.tie(nullptr); ios::sync_with_stdio(false); int N,K; cin >> N >> K; vector A(1 << 10,0); rep(i,N) { int a; cin >> a; A[a] += 1; } if (K > 10) { cout << 0 << '\n'; return 0; } vector> dp(K + 1,vector(1 << 10,0)); rep(i,1<<10) dp[0][0] = 1; rep(i,1<<10) { vector> now = dp; rep(j,K) { rep(k,1<<10) { if ((k&i) == i) now[j + 1][k] += dp[j][k^i] * A[i]; } } swap(now,dp); } mint ans = 0; rep(i,1<<10) ans += dp[K][i]; cout << ans << '\n'; return 0; }