use std::collections::HashSet;

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 m = nm[1];
    let mut ab: Vec<Vec<usize>> = vec![vec![]; n];
    for _ in 0..m {
        let mut abtemp = String::new();
        std::io::stdin().read_line(&mut abtemp).ok();
        let abtemp: Vec<usize> = abtemp.trim().split_whitespace().map(|s| s.parse().unwrap()).collect();
        ab[abtemp[0]].push(abtemp[1]);
        ab[abtemp[1]].push(abtemp[0]);
    }

    let mut result: HashSet<(usize, usize, usize, usize)> = HashSet::new();
    for i in 0..n {
        if ab[i].len() < 2 { continue; }
        for j in 0..ab[i].len() {
            for k in j+1..ab[i].len() {
                let a = i;
                let b = ab[i][j];
                let c = ab[i][k];
                if ab[b].contains(&c) || ab[c].contains(&b) { continue; }
                ab[b].iter().filter(|d| **d != a && ab[c].contains(&d) && !ab[**d].contains(&a))
                    .map(|d| { let mut ret = vec![a, b, c, *d]; ret.sort(); ret })
                    .for_each(|v| { result.insert((v[0], v[1], v[2], v[3])); });
            }
        }
    }
    println!("{}", result.len());
}