import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner scan = new Scanner(System.in);
		int N = scan.nextInt();
		int M = scan.nextInt();
		int[]a = new int[M];
		int[]b = new int[M];
		for(int i = 0; i < M; i++) {
			a[i] = scan.nextInt();
			b[i] = scan.nextInt();
		}
		scan.close();
		if(M < 4 || N < 4) {
			System.out.println(0);
			System.exit(0);
		}
		int[][]G = new int[N][N];
		for(int i = 0; i < M; i++) {
			G[a[i]][b[i]] = 1;
			G[b[i]][a[i]] = 1;
		}
		int cnt = 0;
		for(int i = 0; i < N - 3; i++) {
			for(int j = i + 1; j < N - 2; j++) {
				for(int k = j + 1; k < N - 1; k++) {
					for(int l = k + 1; l < N; l++) {
						int d1 = G[i][j] + G[i][k] + G[i][l];
						int d2 = G[j][i] + G[j][k] + G[j][l];
						int d3 = G[k][i] + G[k][j] + G[k][l];
						int d4 = G[l][i] + G[l][j] + G[l][k];
						if(d1 == 2 && d2 == 2 && d3 == 2 && d4 == 2) {
							cnt ++;
						}
					}
				}
			}
		}
		System.out.println(cnt);
	}
}