use std::io::*;
const MOD: u64 = 998244353;
fn main() {
    let mut s: String = String::new();
    std::io::stdin().read_to_string(&mut s).ok();
    let mut itr = s.trim().split_whitespace();
    let n: usize = itr.next().unwrap().parse().unwrap();
    let l: usize = itr.next().unwrap().parse().unwrap();
    let r: usize = itr.next().unwrap().parse().unwrap();
    let a: Vec<usize> = (0..n)
        .map(|_| itr.next().unwrap().parse().unwrap())
        .collect();

    let mut dp: Vec<Vec<u64>> = vec![vec![0; n]; r + 1];
    let mut ans = 0;
    for i in 0..r {
        let mut s = dp[i].iter().sum::<u64>();
        if i == 0 {
            s += 1;
        }
        for j in 0..n {
            let t = s - dp[i][j];
            for k in 1..=a[j] {
                let u = i + (j + 1) * k;
                if u > r {
                    break;
                }
                dp[u][j] = (dp[u][j] + t) % MOD;
                if u >= l {
                    ans = (ans + t) % MOD;
                }
            }
        }
    }
    println!("{}", ans);
}