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