fn main() {
    let (_n, k) = {
        let mut line = String::new();
        std::io::stdin().read_line(&mut line).unwrap();
        let mut iter = line.split_whitespace();
        (
            iter.next().unwrap().parse::<usize>().unwrap(),
            iter.next().unwrap().parse::<usize>().unwrap(),
        )
    };
    let aa: Vec<_> = {
        let mut line = String::new();
        std::io::stdin().read_line(&mut line).unwrap();
        line.split_whitespace()
            .map(|x| x.parse::<usize>().unwrap())
            .collect()
    };

    let mut dp = vec![(0, 0)];
    for &a in &aa {
        for i in 0..dp.len() {
            let (s, cnt) = dp[i];

            if cnt < k {
                dp.push((s + a, cnt + 1));
            }
        }
    }

    let ans = dp
        .iter()
        .filter(|&&(s, cnt)| cnt == k && s % 998244353 <= s % 998)
        .count()
        % 998;
    println!("{}", ans);
}