#include<bits/stdc++.h>
namespace {
#pragma GCC diagnostic ignored "-Wunused-function"
#include<atcoder/all>
#pragma GCC diagnostic warning "-Wunused-function"
using namespace std;
using namespace atcoder;
#define rep(i,n) for(int i = 0; i < (int)(n); i++)
#define rrep(i,n) for(int i = (int)(n) - 1; i >= 0; i--)
#define all(x) begin(x), end(x)
#define rall(x) rbegin(x), rend(x)
template<class T> bool chmax(T& a, const T& b) { if (a < b) { a = b; return true; } else return false; }
template<class T> bool chmin(T& a, const T& b) { if (b < a) { a = b; return true; } else return false; }
using ll = long long;
using P = pair<int,int>;
using VI = vector<int>;
using VVI = vector<VI>;
using VL = vector<ll>;
using VVL = vector<VL>;
using mint = modint998244353;

} int main() {
  ios::sync_with_stdio(false);
  cin.tie(0);
  int n, m, k;
  cin >> n >> m >> k;
  VVI to(1 << n);
  rep(s, 1 << n) rep(t, 1 << n) {
    if (popcount(1U * (s & t)) >= k) {
      to[s].emplace_back(t);
    }
  }
  vector<mint> dp(1 << n, 1), ndp;
  rep(_, m - 1) {
    ndp.assign(1 << n, 0);
    rep(s, 1 << n) for (int t : to[s]) ndp[t] += dp[s];
    swap(dp, ndp);
  }
  mint ans = accumulate(all(dp), mint());
  cout << ans.val() << '\n';
}