#include<fstream>
#include<bitset>
#include<vector>
using namespace std;

ifstream f("triplete.in");
ofstream g("triplete.out");

# define nmax 4100
# define mmax 65540

int n,m;
bitset <nmax> a[nmax],bla;
typedef  struct structura {int unu,doi;};
structura v[mmax];

void citire()
{
	f>>n>>m;
	int x,y,i;
	for(i=0;i<m;i++)
	{
		f>>x>>y;
		a[x][y]=a[y][x]=1;
		v[i].unu=x;
		v[i].doi=y;
	}
}
int main()
{
	citire();
	int i,nr=0;
	for(i=0;i<m;i++)
	{
		bla=a[v[i].unu]&a[v[i].doi];
		nr+=bla.count();
	}
	g<<nr/3<<'\n';
}