const LIMIT: usize = 3000;

fn main() {
    let mut n = String::new();
    std::io::stdin().read_line(&mut n).ok();
    let n: usize = n.trim().parse().unwrap();
    let mut r = String::new();
    std::io::stdin().read_line(&mut r).ok();
    let r: Vec<usize> = r.trim().split_whitespace().map(|s| s.parse().unwrap()).collect();
    let mut g = String::new();
    std::io::stdin().read_line(&mut g).ok();
    let g: Vec<usize> = g.trim().split_whitespace().map(|s| s.parse().unwrap()).collect();
    let mut b = String::new();
    std::io::stdin().read_line(&mut b).ok();
    let b: Vec<usize> = b.trim().split_whitespace().map(|s| s.parse().unwrap()).collect();

    let mut greens = vec![0usize; LIMIT+1];
    let mut blues = vec![0usize; LIMIT+1];
    for i in 0..n {
        greens[g[i]] += 1;
        blues[b[i]] += 1;
    }
    let mut maxsum = vec![vec![0usize; 2*LIMIT+1]; LIMIT+1];
    for i in 0..=LIMIT {
        if greens[i] == 0 { continue; }
        for j in 0..=LIMIT {
            let maxval = i.max(j);
            let sumval = i+j;
            maxsum[maxval][sumval] += greens[i] * blues[j];
        }
    }
    for i in 0..=LIMIT {
        for j in 0..=2*LIMIT {
            if i > 0 { maxsum[i][j] += maxsum[i-1][j]; }
            if j > 0 { maxsum[i][j] += maxsum[i][j-1]; }
            if i > 0 && j > 0 { maxsum[i][j] -= maxsum[i-1][j-1]; }
        }
    }
    let mut result = 0usize;
    for &v in r.iter() {
        result += maxsum[v][v*2] - maxsum[v][v];
    }
    println!("{}", result);
}