#include <bits/stdc++.h>
using namespace std;
using ll = long long;

template<class T> istream& operator >> (istream& is, vector<T>& vec) {
    for(T& x : vec) is >> x;
    return is;
}

template<class T> ostream& operator << (ostream& os, const vector<T>& vec) {
    if(vec.empty()) return os;
    os << vec[0];
    for(auto it = vec.begin(); ++it != vec.end(); ) os << ' ' << *it;
    return os;
}

int main(){
    ios::sync_with_stdio(false);
    cin.tie(0);
    int n, k, ans = 0;;
    cin >> n >> k;
    vector<ll> a(n);
    cin >> a;
    for(int comb = (1 << k) - 1; comb < (1 << n); ){
        ll s = 0;
        for(int i = 0; i < n; i++){
            if(comb >> i & 1) s += a[i];
        }
        ans += (s % 998 >= s % 998244353);
        int x = comb & (-comb), y = comb + x;
        comb = ((comb & ~y) / x >> 1) | y;
    }
    cout << ans % 998 << '\n';
}