#include <atcoder/modint>
#include <bits/extc++.h>

namespace atcoder {
template <int m>
std::ostream &operator<<(std::ostream &os, static_modint<m> n) {
    return os << n.val();
}
template <int m>
std::istream &operator>>(std::istream &is, static_modint<m> &n) {
    int tmp;
    is >> tmp;
    n = tmp;
    return is;
}
} // namespace atcoder

int main() {
    using namespace std;
    using modint = atcoder::static_modint<998244353>;
    unsigned N, M, K;
    cin >> N >> M >> K;

    vector<modint> dp(1U << N, 1), prev(1U << N);

    vector<pair<unsigned, unsigned>> edges;
    for (unsigned i{}; i < 1U << N; i++)
        for (unsigned j{}; j < 1U << N; j++)
            if (popcount(i & j) >= K)
                edges.emplace_back(i, j);

    for (unsigned i{1}; i < M; i++) {
        swap(dp, prev);
        ranges::fill(dp, 0);
        for (const auto &[from, to] : edges)
            dp[to] += prev[from];
    }
    cout << reduce(cbegin(dp), cend(dp)) << endl;
    return 0;
}