fn main() {
    let mut nm = String::new();
    std::io::stdin().read_line(&mut nm).ok();
    let nm: Vec<usize> = nm.trim().split_whitespace().map(|s| s.parse().unwrap()).collect();
    let n = nm[0];
    let k = nm[1];

    let summary = n * (n+1) / 2;
    if k == summary || k == 0 {
        println!("0");
        return;
    }
    let k = summary - k;
    let mut lidx = 1usize;
    let mut ridx = 1usize;
    let mut val = 1usize;
    while lidx <= n {
        while ridx < n && val < k {
            ridx += 1;
            val += ridx;
        }
        if val == k {
            println!("1");
            return;
        }
        val -= lidx;
        lidx += 1;
    }
    println!("2");
}