#include <fstream>
#include <vector>
#include <bitset>
using namespace std;

string file = "triplete";

ifstream cin( (file + ".in").c_str() );
ofstream cout( (file + ".out").c_str() );

const int MAXN = 4100;
const int oo = (1<<31)-1;

bitset<MAXN> G[MAXN];
vector< pair<int, int> > Edges;
int N, M;

int main() {
    cin >> N >> M;
    for(int i = 1 ; i <= M ; ++ i) {
        int x, y;
        cin >> x >> y;
        Edges.push_back(make_pair(x, y));
        G[x][y] = 1;
        G[y][x] = 1;
    }
    int Ans = 0;
    for(int i = 0 ; i < M ; ++ i) {
        int x = Edges[i].first;
        int y = Edges[i].second;
        Ans += ((bitset<MAXN>)G[x]&G[y]).count();
    }
    cout << Ans / 3 << '\n';
    cin.close();
    cout.close();
    return 0;
}