#include <bits/stdc++.h>
// clang-format off
using namespace std; using ll=long long; using ull=unsigned long long; using pll=pair<ll,ll>; const ll INF=4e18;
void print0(){}; template<typename H,typename... T> void print0(H h,T... t){cout<<h;print0(t...);}
void print1(){print0("\n");}; template<typename H,typename... T>void print1(H h,T... t){print0(h);if(sizeof...(T)>0)print0(" ");print1(t...);}
void ioinit() { cout<<fixed<<setprecision(15); cerr<<fixed<<setprecision(6); ios_base::sync_with_stdio(0); cin.tie(0); }
#define debug1(a) { cerr<<#a<<":"<<a<<endl; }
#define debug2(a,b) { cerr<<#a<<":"<<a<<" "<<#b<<":"<<b<<endl; }
#define debug3(a,b,c) { cerr<<#a<<":"<<a<<" "<<#b<<":"<<b<<" "<<#c<<":"<<c<<endl; }
#define debug4(a,b,c,d) { cerr<<#a<<":"<<a<<" "<<#b<<":"<<b<<" "<<#c<<":"<<c<<" "<<#d<<":"<<d<<endl; }
// clang-format on

const ll MODULO = 998244353;

ll N, M, K;
ll dp(ll col, ll s) {
    static bool done[20005][32];
    static ll memo[20005][32];
    if (done[col][s]) return memo[col][s];
    done[col][s] = true;

    if (col == M) {
        return memo[col][s] = 1;
    }
    ll ans = 0;
    for (ll t = 0; t < (1 << N); t++) {
        ll sum = 0;
        for (ll j = 0; j < N; j++) {
            if (((s >> j) & 1) && ((t >> j) & 1)) {
                sum++;
            }
        }
        if (col == 0 || sum >= K) {
            ans += dp(col + 1, t);
        }
    }
    return memo[col][s] = ans % MODULO;
}
int main() {
    ioinit();
    cin >> N >> M >> K;
    print1(dp(0, 0));
    return 0;
}