#include "bits/stdc++.h"
using namespace std;
#define ll long long int
#define rep(i,n) for( int i = 0; i < n; i++ )
#define rrep(i,n) for( int i = n; i >= 0; i-- )
#define REP(i,s,t) for( int i = s; i <= t; i++ )
#define RREP(i,s,t) for( int i = s; i >= t; i-- )
#define dump(x)  cerr << #x << " = " << (x) << endl;
#define INF 2000000000
#define mod 1000000007
#define INF2 1000000000000000000


int main(void)
{
    cin.tie(0);
    ios::sync_with_stdio(false);
	int N, M;
	cin >> N >> M;
	bool G[50][50];
	rep(i, N) rep(j, N) G[i][j] = false;
	rep(i, M) {
		int a, b;
		cin >> a >> b;
		G[a][b] = G[b][a] = true;
	}
	int ans = 0;
	rep(i, N) {
		rep(j, N) {
			if (!G[i][j] || i == j) continue;
			rep(s, N) {
				if (!G[i][s] || j == s || i == s) continue;
				if (G[s][j]) continue;
				rep(t, N) {
					if (G[i][t] || s == t || j == t || i == t) continue;
					if (!G[j][t]) continue;
					if (!G[s][t]) continue;
					//cout << i << " " << j << " " << s << " " << t << endl;
					ans++;
				}
			}
		}
	}
	cout << ans / 8 << endl;


    return 0;
}