#include<bits/stdc++.h>
#include<atcoder/all>
#define chmin(x,y) (x) = min((x),(y))
#define chmax(x,y) (x) = max((x),(y))
#define ld long double
using namespace std;
using namespace atcoder;
using ll = long long;
using mint = modint998244353;
const ll mod = 998244353;
// using Graph = vector<vector<pair<int,int>>>;
using Graph = vector<vector<int>>;
const vector<int> dx = {1,0,-1,0}, dy = {0,1,0,-1};

int main(){
  int N,M,K; cin >> N >> M >> K;
  if(M == 1){
    cout << 0 << endl;
    return 0;
  }
  vector<vector<mint>> dp(M,vector<mint>(1<<N));
  for(int i = 0; i < (1<<N); i++){
    dp[0][i] = 1;
  }
  
  for(int i = 1; i < M; i++){
    for(int j = 0; j < (1<<N); j++){
      for(int k = 0; k < (1<<N); k++){
        int l = __builtin_popcount(j&k);
        if(l >= K){
          dp[i][k] += dp[i-1][j];
        }
      }
    }
  }
  
  mint ans = 0;
  for(int j = 0; j < (1<<N); j++){
    ans += dp[M-1][j];
  }
  cout << ans.val() << endl;
}