#include <iostream>
#include <cstdio>
#include <vector>
#include <algorithm>
#include <utility>
#include <string>

using namespace std;

vector<vector<bool>> connect;

bool isquad(int a, int b, int c, int d) {
	if (connect[a][b] && connect[b][c] && connect[c][d] && connect[d][a] &&
		!connect[a][c] && !connect[b][d]) {
		return true;
	}
	return false;
}

int main() {
	int n, m;
	cin >> n >> m;

	connect.assign(n, vector<bool>(n, false));
	int a, b;
	for (int i = 0; i < m; i++) {
		cin >> a >> b;
		connect[a][b] = true;
		connect[b][a] = true;
	}

	int ans = 0;
	for (int i = 0; i < n; i++)
	for (int j = i+1; j < n; j++)
	for (int k = j+1; k < n; k++)
	for (int l = k+1; l < n; l++) {
		ans += isquad(i,j,k,l);
		ans += isquad(i,j,l,k);
		ans += isquad(i,k,j,l);
	}

	cout << ans << endl;
	return 0;
}