#include <iostream>
#include <fstream>
#include <bitset>

using namespace std;
ifstream f("triplete.in");
ofstream g("triplete.out");

int n, m, sol;
bitset <4100> A[4100], x;

void Read()
{
    f>>n>>m;
    for(int i = 1; i <= m; i++)
    {
        int x, y;
        f>>x>>y;
        A[x][y] = A[y][x] = 1;
    }
}

void Solve()
{
    for(int i = 1; i <= n; i++)
    {
        for(int j = i+1; j <= n; j++)
        {
            if(A[i][j])
            {
                x = A[i]&A[j];
                sol += x.count();
            }
        }
    }
}

void Print()
{
    g<<sol/3<<'\n';
}

int main()
{
    Read();
    Solve();
    Print();
    return 0;
}