# include <bits/stdc++.h>
using namespace std;
typedef long long ll; 
// # define int long long
# define lc u << 1
# define rc u << 1 | 1
# define fi first
# define se second
const int N = 55, M = N * N;

int n, m;
int g[N][N];
signed main ()
{
    // freopen ("rec.in", "r", stdin);  freopen ("rec.out", "w", stdout);
    scanf ("%d%d", &n, &m);
    for (int a = 1; a <= m; a ++ )
    {
        int u, v; scanf ("%d%d", &u, &v);
        g[u][v] = g[v][u] = 1;
    }
    int ans = 0;
    for (int a = 0; a < n; a ++ )
    {
        for (int b = 0; b < n; b ++ )
        {
            if (a == b) continue;
            for (int c = 0; c < n; c ++ )
            {
                if (c == a || c == b) continue;
                for (int d = 0; d < n; d ++ )
                {
                    if (d == a || d == b || d == c) continue;
                    if (g[a][b] && g[b][c] && g[c][d] && g[d][a] && !g[a][c] && !g[b][d])
                        ans ++ ;
                }
            }
        }
    }
    printf ("%d\n", ans / 8);
    return 0;
}