#include<cstdio>
#include<bitset>
using namespace std;
int x[65536],y[65536];
bitset<4096> a[4096];
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",&x[i],&y[i]);
        x[i]--; y[i]--;
        a[x[i]][y[i]]=1;
		a[y[i]][x[i]]=1;
    }
	int nr=0;
    for(int i=0;i<m;i++) nr+=(a[x[i]]&a[y[i]]).count();
	printf("%d\n",nr/3);
	return 0;
}