using System;
using System.Numerics;
public class Program
{
    static bool checkSquare(bool[,] edge, int i, int j, int k, int l)
    {
        return edge[i, j] && edge[j, k] && edge[k, l] && edge[l, i] && !edge[i, k] && !edge[j, l];
    }
    static void Main()
    {
        string[] s = Console.ReadLine().Split();
        int N = int.Parse(s[0]);
        int M = int.Parse(s[1]);

        bool[,] edge = new bool[N, N];
        for (int i = 0; i < M; i++)
        {
            string[] p = Console.ReadLine().Split();
            int a = int.Parse(p[0]);
            int b = int.Parse(p[1]);
            edge[a, b] = true;
            edge[b, a] = true;
        }
        int count = 0;
        for (int i = 0; i < N; i++)
        {
            for (int j = i + 1; j < N; j++)
            {
                for (int k = j + 1; k < N; k++)
                {
                    for (int l = k + 1; l < N; l++)
                    {
                        if (checkSquare(edge, i, j, k, l))
                        {
                            count++;
                        }
                        if (checkSquare(edge, i, k, l, j))
                        {
                            count++;
                        }
                        if (checkSquare(edge, i, l, j, k))
                        {
                            count++;
                        }
                    }
                }
            }
        }
        Console.WriteLine(count);

    }
}