import java.util.*;

class Main {
        public static void main(String args[]) {
                try (Scanner sc = new Scanner(System.in)) {
                        int N = sc.nextInt(), M = sc.nextInt();
                        boolean[][] f = new boolean[N][N];
                        for (int i = 0; i < M; i++) {
                                int a = sc.nextInt(), b = sc.nextInt();
                                f[a][b] = true;
                                f[b][a] = true;
                        }
                        int ans = 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 (f[i][j]) {
                                                                if (f[i][k] && f[k][l] && f[l][j] && !f[i][l] && !f[j][k]) {
                                                                        ans++;
                                                                } else if(f[i][l] && f[k][l] && f[k][j] && !f[i][k] && !f[j][l])     {
                                                                        ans++;
                                                                }
                                                        } else {
                                                                if (!f[k][l] && f[i][k] &&f[i][l] && f[j][k] && f[j][l]) {
                                                                        ans++;
                                                                }
                                                        }
                                                }
                                        }
                                }
                        }
                        System.out.println(ans);
                }
        }
}