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

#ifdef LOCAL
#include <debug.hpp>
#else
#define debug(...)
#endif

int next_conbination(int sub) {
    assert(sub > 0);
    int t = sub | (sub - 1);
    return (t + 1) | (((~t & -~t) - 1) >> (__builtin_ctz(sub) + 1));
}

int main() {
    cin.tie(nullptr);
    ios::sync_with_stdio(false);
    cout << fixed << setprecision(20);
    int N, K;
    cin >> N >> K;
    vector<int> A(N);
    for (int i = 0; i < N; i++) cin >> A[i];

    int ans = 0;
    for (int bit = (1 << K) - 1; bit < (1 << N); bit = next_conbination(bit)) {
        ll S998 = 0, S998244353 = 0;
        for (int i = 0; i < N; i++) {
            if ((bit >> i) & 1) S998 += A[i], S998244353 += A[i];
        }
        S998 %= 998, S998244353 %= 998244353;
        if (S998244353 <= S998) ans++;
    }

    cout << ans % 998 << '\n';
}