#include<fstream>
#define dmax 66000
#define dmax2 4100
using namespace std;

typedef struct muchie
{
 int x,y;
} muchie;


int n,m;
muchie mu[dmax];
bool a[dmax2][dmax2];
long long numar;


void citire()
{
 int i;
	
 ifstream fin("triplete.in");
 
 fin>>n>>m;
 for (i=1; i<=m; i++)
	 {
	  fin>>mu[i].x>>mu[i].y;
	  a[mu[i].x][mu[i].y] = 1;
	  a[mu[i].y][mu[i].x] = 1;
	 }
 
 fin.close();
}


void solve()
{
 int i,j;
	
 for (i=1; i<=m; i++)
	 for (j=1; j<=n; j++)
		 if (a[mu[i].x][j] == 1 && a[mu[i].y][j] == 1) /*daca exista muchie de la m[i].x la j si de la m[i].y la j*/
			 numar++;
}


void afisare()
{
 ofstream fout("triplete.out");
 
 fout<<numar / 3;
 
 fout.close();
}


int main()
{
	
 citire();
 solve();
 afisare();
	
 return 0;
}