// ---------- begin scannner ----------
#[allow(dead_code)]
mod scanner {
    use std::str::FromStr;
    pub struct Scanner<'a> {
        it: std::str::SplitWhitespace<'a>,
    }
    impl<'a> Scanner<'a> {
        pub fn new(s: &'a String) -> Scanner<'a> {
            Scanner {
                it: s.split_whitespace(),
            }
        }
        pub fn next<T: FromStr>(&mut self) -> T {
            self.it.next().unwrap().parse::<T>().ok().unwrap()
        }
        pub fn next_bytes(&mut self) -> Vec<u8> {
            self.it.next().unwrap().bytes().collect()
        }
        pub fn next_chars(&mut self) -> Vec<char> {
            self.it.next().unwrap().chars().collect()
        }
        pub fn next_vec<T: FromStr>(&mut self, len: usize) -> Vec<T> {
            (0..len).map(|_| self.next()).collect()
        }
    }
}
// ---------- end scannner ----------

use std::io::Write;

fn main() {
    use std::io::Read;
    let mut s = String::new();
    std::io::stdin().read_to_string(&mut s).unwrap();
    let mut sc = scanner::Scanner::new(&s);
    let out = std::io::stdout();
    let mut out = std::io::BufWriter::new(out.lock());
    run(&mut sc, &mut out);
}

fn run<W: Write>(sc: &mut scanner::Scanner, out: &mut std::io::BufWriter<W>) {
    let t: u32 = sc.next();
    for _ in 0..t {
        let n: usize = sc.next();
        let w: usize = sc.next();
        let a: Vec<usize> = sc.next_vec(n);
        let ans = solve(w, a);
        writeln!(out, "{}", ans).ok();
    }
}

fn solve(w: usize, cost: Vec<usize>) -> u64 {
    let mut f = vec![1, 2];
    f.resize(cost.len(), 0);
    for i in 2..f.len() {
        f[i] = f[i - 1] + f[i - 2];
    }
    let mut dp = vec![(0, 0)];
    for (i, cost) in cost.iter().enumerate().rev() {
        for j in (0..dp.len()).rev() {
            let (a, b) = dp[j];
            if a + *cost <= w {
                dp.push((a + *cost, b + f[i]));
            }
        }
        dp.sort_by_key(|p| (p.0, !p.1));
        dp.dedup_by(|a, b| a.1 <= b.1);
        let rem = f[..i].iter().sum::<u64>();
        let last = *dp.last().unwrap();
        dp.retain(|p| p.1 + rem >= last.1);
    }
    dp.last().unwrap().1
}