#include <bits/stdc++.h>

using namespace std;

#define FOR(i,a,b) for(int i=(a);i<(b);i++)
#define REP(i,n) FOR(i,0,n)
#define ALL(v) (v).begin(),(v).end()

template<typename A, typename B> inline bool chmax(A &a, B b) { if (a<b) { a=b; return 1; } return 0; }
template<typename A, typename B> inline bool chmin(A &a, B b) { if (a>b) { a=b; return 1; } return 0; }

typedef unsigned long long ull;
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;

const ll INF = 1ll<<29;
const ll MOD = 1000000007;
const double EPS  = 1e-10;

int n, m;
bool g[50][50];

int main() {
	cin >> n >> m;
	REP(i, m) {
		int a, b;
		scanf("%d %d", &a, &b);
		g[a][b] = g[b][a] = true;
	}
	
	ll ans = 0;
	
	REP(i, n) REP(j, n) REP(k, n) REP(l, n) {
		if (i == j || i == k || i == l || j == k || j == l || k == l) continue;
		if (!g[i][j] || !g[j][k] || !g[k][l] || !g[l][i]) continue;
		if (g[i][k] || g[j][l]) continue;
		
		ans++;
	}
	
	ans /= 8;
	
	cout << ans << endl;
	
	return 0;
}