#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using ld = long double;
#define all(s) (s).begin(),(s).end()
#define vcin(n) for(ll i=0;i<ll(n.size());i++) cin>>n[i]
#define rever(vec) reverse(vec.begin(), vec.end())
#define sor(vec) sort(vec.begin(), vec.end())
#define fi first
#define se second
const ll mod = 998244353;
//const ll mod = 1000000007;
const ll inf = 2000000000000000000ll;
static const long double pi = 3.141592653589793;
template<class T,class U> void chmax(T& t,const U& u){if(t<u) t=u;}
template<class T,class U> void chmin(T& t,const U& u){if(t>u) t=u;}
ll modPow(ll a, ll n, ll mod) { ll ret = 1; ll p = a % mod; while (n) { if (n & 1) ret = ret * p % mod; p = p * p % mod; n >>= 1; } return ret; }
int main() {
  /* mod は 1e9+7 */
  ios::sync_with_stdio(false);
    std::cin.tie(nullptr);
  cout<< fixed << setprecision(10);
  ll n,l,r;
  cin>>n>>l>>r;
  vector<ll> a(n);
  vcin(a);
  ll dp[r+1][n+1];
  ll sum[r+1];
  for(int i=0;i<=r;i++){
    for(int j=0;j<=n;j++){
      dp[i][j]=0;
    }
  }
  for(int i=0;i<=r;i++){
    sum[i]=0;
  }
  dp[0][0]=1;
  sum[0]=1;
  for(int i=0;i<=r;i++){
    for(int j=1;j<=n;j++){
      ll t=dp[i][j];
      for(int k=1;j*k<=i&&k<=a[j-1];k++){
        t+=sum[i-k*j]-dp[i-k*j][j];
        t%=mod;
        t+=mod;
        t%=mod;
      }
      t%=mod;
      dp[i][j]=t;
      sum[i]+=t;
      sum[i]%=mod;
    }
  }
  ll ans=0;
  for(int i=l;i<=r;i++){
    ans+=sum[i];
    ans%=mod;
  }
  cout<<ans<<endl;
}