#include<fstream>
#include<bitset>
#include<cstdio>
#include<cstring>
using namespace std;
int m,sol;
short n,A[66000],B[66000];
bitset <4100> G[4100],nr;
int main()
{
	int i;
	short j,lim,x,y;
	char s[15];
	freopen("triplete.in","r",stdin);
	gets(s);
	j=0;
	lim=strlen(s);
	while(s[j]!=' ')
	{
		n=n*10+(s[j]-'0');
		j++;
	}
	j++;
	while(j<lim)
	{
		m=m*10+(s[j]-'0');
		j++;
	}
	for(i=1;i<=m;i++)
	{
		gets(s);
		j=x=y=0;
		lim=strlen(s);
		while(s[j]!=' ')
		{
			x=x*10+(s[j]-'0');
			j++;
		}
		j++;
		while(j<lim)
		{
			y=y*10+(s[j]-'0');
			j++;
		}
		if(x<y)
			G[x].set(y);
		else
			G[y].set(x);
		A[i]=x; B[i]=y;
	}
	for(i=1;i<=m;i++)
	{
		nr=(G[A[i]]&G[B[i]]);
		sol+=nr.count();
	}
	freopen("triplete.out","w",stdout);
	printf("%d\n",sol);
	return 0;
}