#include <bits/stdc++.h>
#include <atcoder/all>
using namespace std;
using namespace atcoder;
#define rep(i, n) for(int i=0;i<(n);++i)
#define rep1(i, n) for(int i=1;i<=(n);i++)
#define ll long long
using mint = modint998244353;
using P = pair<ll,ll>;
using lb = long double;
using T = tuple<ll, ll, ll>;
#ifdef LOCAL
#  include <debug_print.hpp>
#  define dbg(...) debug_print::multi_print(#__VA_ARGS__, __VA_ARGS__)
#else
#  define dbg(...) (static_cast<void>(0))
#endif

int main()
{
    int n, m, k;
    cin >> n >> m >> k;
    vector<mint> dp(1<<n);
    rep(i,1<<n) dp[i] = 1;
    rep(i,m-1) {
        vector<mint> p(1<<n);
        swap(dp,p);
        rep(j,1<<n)rep(l,1<<n) {
            if(__builtin_popcount(j&l)>=k) dp[l] += p[j];
        }
    }
    mint ans = 0;
    rep(i,1<<n) ans += dp[i];
    cout << ans.val() << endl;
    return 0;
}