#include<fstream>
#include<bitset>
using namespace std;
ifstream fin("triplete.in"); ofstream fout("triplete.out");
bitset<4096> adj[4096];
struct T
{
    int x,y;
} a[65536];
int main()
{
    int n,m;
    fin >> n >> m;
    for(int i=0;i<m;i++)
    {
        fin >> a[i].x >> a[i].y;
        a[i].x--;a[i].y--;
        adj[a[i].x][a[i].y]=1;
        adj[a[i].y][a[i].x]=1;
    }
    int ans=0;
    for(int i=0;i<m;i++)
        ans+=(adj[a[i].x]&adj[a[i].y]).count();
    fout << ans / 3 << "\n";
    return 0;
}