#include <iostream>
#include <vector>
using namespace std;
#include <atcoder/modint>
using mint = atcoder::modint998244353;

int main() {
    cin.tie(nullptr), ios::sync_with_stdio(false);
    int N, L, R;
    cin >> N >> L >> R;
    vector<int> A(N);
    for (auto &a : A) cin >> a;

    vector dp(R + 1, vector<mint>(N + 1)); // (sum, last)
    dp[0][0] = 1;
    mint ret = 0;
    for (int s = 0; s < R; s++) {
        const mint f = accumulate(dp[s].begin(), dp[s].end(), mint(0));
        for (int a = 1; a <= N; a++) {
            for (int n = 1; n <= A[a - 1]; n++) {
                int t = s + n * a;
                if (t > R) break;
                dp[t][a] += f - dp[s][a];
                if (t >= L) ret += f - dp[s][a];
            }
        }
    }
    cout << ret.val() << '\n';
}