use std::cmp::max;

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

    let mut result: Vec<usize> = vec![0; y+1];
    for i in 0..y {
        let a: usize = i * i;
        if a > y { break; }
        for j in i..y {
            let b: usize = j * j;
            if a + b > y { break; }
            if a + b < x { continue; }
            if a == 0 || i == j {
                result[a+b] += 4;
            } else {
                result[a+b] += 8;
            }
        }
    }
    let mut val: usize = 0;
    for i in x..=y {
        val = max(val, result[i]);
    }
    println!("{}", val);
}