#include <bits/stdc++.h>
#define maxn 4100
#define maxm 65600
using namespace std;

int v[maxm],w[maxm],a[maxn][maxn/32],n,m;

int nr_unu(int x)
{
    int s=0;
    while (x)
        {
            s++;
            x=x&(x-1);
        }
    return s;
}

int main()
{
    freopen("triplete.in","r",stdin);
    freopen("triplete.out","w",stdout);
    scanf("%d%d",&n,&m);
    for (int i=1;i<=m;++i)
    {
        scanf("%d%d",&v[i],&w[i]);
        if (v[i]>w[i])
            swap(v[i],w[i]);
        a[v[i]][w[i]/32]=a[v[i]][w[i]/32]+(1<<(w[i]%32));
    }
    int aux=n/32,sol=0;
    for (int i=1;i<=m;++i)
        for (int j=0;j<=aux;++j)
            sol+=nr_unu(a[v[i]][j] & a[w[i]][j]);
    printf("%d",sol);
    return 0;
}