#include using namespace std; using ll = long long; const int M = 1<<10; #define MOD 998244353 template struct ModInt{ int x; ModInt():x(0){} ModInt(long long 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^=(long long p){ ModInt res = 1; for (; p; p >>= 1) { if (p & 1) res *= *this; *this *= *this; } return *this = res; } 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;} ModInt operator^(long long 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;} explicit operator int() const { return x; } ModInt operator=(const int p) {x = p; return ModInt(*this);} ModInt inverse()const{ int a=x,b=mod,u=1,v=0,t; while(b>0){ t=a/b; a-=t*b; std::swap(a,b); u-=t*v; std::swap(u,v); } return ModInt(u); } friend std::ostream &operator<<(std::ostream &os,const ModInt &p){ return os<>(std::istream &is,ModInt &a){ long long x; is>>x; a=ModInt(x); return (is); } }; typedef ModInt mint; int main() { int n, k; cin >> n >> k; vector a(M); for(int i = 0; i < n; i++) { int t; cin >> t; a[t]++; } if(k >= 12) { cout << 0 << endl; return 0; } vector>> dp(M + 1, vector>(k + 1, vector(M))); dp[0][0][0] = 1; for(int i = 0; i < M; i++) { //今回見るやつ for(int j = 0; j <= k; j++) { //何個取ったか for(int t = 0; t < M; t++) { //前の状態 //取らない dp[i + 1][j][t] += dp[i][j][t]; //取る if(j != k && (i + t) == (i xor t)) { dp[i + 1][j + 1][t xor i] += dp[i][j][t] * a[i]; } } } } mint sum = 0; for(int i = 0; i < M; i++) { sum += dp[M][k][i]; } cout << sum << endl; }