#include<fstream>
#include<bitset>
#include<vector>
using namespace std;
long long i, j, k, ok, n, m, el, min1, max1, x, y, a, b, rez,nr;
bitset<4100>bit[4100];
vector<int>v[4100];
int main()
{
	ifstream f("triplete.in");
	ofstream g("triplete.out");
	//ifstream f("file.in");
	//ofstream g("file.out");
	f >> n >> m;
	for (i = 1; i <= m; i++)
	{
		f >> x >> y;
		bit[x][y] = 1;
		bit[y][x] = 1;
		v[x].push_back(y);
		v[y].push_back(x);
	}
	for (i = 1; i <= n; i++)
		for (j = 0; j < v[i].size(); j++)
			for (k = 0; k < v[v[i][j]].size(); k++)
				if (bit[i][v[v[i][j]][k]])
					nr++;
	g << nr / 6;
	return 0;
}