#include <stdio.h>
#include <vector>
#include <algorithm>
#include <math.h>
 
using namespace std;

int n, m;

bool a[4100][4100];

int main() {
	freopen("triplete.in", "r", stdin);
	freopen("triplete.out", "w", stdout);

	scanf("%d %d", &n, &m);

	for (int i = 0; i < m; ++i) {
		int x, y;
		scanf("%d %d", &x, &y);
		a[x][y]++;
		a[y][x]++;
	}

	int result = 0;

	for (int i = 1; i <= n; ++i) {
		for (int j = i + 1; j <= n; ++j) {
			if (!a[i][j]) {
				continue;
			}
			for (int k = j + 1; k <= n; ++k) {
				if (a[i][j] && a[i][k] && a[j][k]) {
					result++;
				}
			}
		}
	}

	printf("%d", result);

	return 0;
}