//#include <iostream>
#include <fstream>
#include <bitset>
using namespace std;
ifstream cin("triplete.in");
ofstream cout("triplete.out");
bitset <4100> ap[4100];
pair<int,int> muchie[66000];
int main()
{
    int n,m,a,b;
    cin>>n>>m;
    for(int i=1;i<=m;i++){
        cin>>a>>b;
        ap[a][b]=1;
        ap[b][a]=1;
        muchie[i]=make_pair(a,b);
    }
    int sol=0;
    for(int i=1;i<=m;i++){
        a=muchie[i].first;
        b=muchie[i].second;
        sol+=(ap[a]&ap[b]).count();
    }
    cout<<sol/3;
    return 0;
}