#include<cstdio>
#include<bitset>
using namespace std;
bitset<4096> a[4096];
struct {int x,y;} v[65536];
int main()
{   freopen("triplete.in","r",stdin);
    freopen("triplete.out","w",stdout);
	int n,m;
	scanf("%d%d",&n,&m);
    for(int i=0;i<m;++i)
    {	scanf("%d%d",&v[i].x,&v[i].y);
        v[i].x--; v[i].y--;
        a[v[i].x][v[i].y]=1;
		a[v[i].y][v[i].x]=1;
    }
	int nr=0;
    for(int i=0;i<m;++i) nr+=(a[v[i].x]&a[v[i].y]).count();
	printf("%d\n",nr/3);
	return 0;
}