import java.util.*;
import java.io.*;

public class Main {
    static HashSet<Integer>[] graph;
    static int n;
    public static void main(String[] args) throws Exception {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        String[] first = br.readLine().split(" ", 2);
        int n = Integer.parseInt(first[0]);
        int m = Integer.parseInt(first[1]);
        graph = new HashSet[n];
        for (int i = 0; i < n; i++) {
            graph[i] = new HashSet<Integer>();
        }
        for (int i = 0; i < m; i++) {
            String[] line = br.readLine().split(" ", 2);
            int a = Integer.parseInt(line[0]);
            int b = Integer.parseInt(line[1]);
            graph[a].add(b);
            graph[b].add(a);
        }
        int count = 0;
        for (int i = 0; i < n; i++) {
            if (graph[i].size() < 2) {
                continue;
            }
            for (int x : graph[i]) {
                for (int y : graph[i]) {
                    if (x >= y) {
                        continue;
                    }
                    if (graph[x].contains(y)) {
                        continue;
                    }
                    count += getCount(x, y, i);
                }
            }
        }
        System.out.println(count / 4);
    }
    
    static int getCount(int a, int b, int except) {
        int count = 0;
        for (int i = 0; i < graph.length; i++) {
            if (i == except) {
                continue;
            }
            if (graph[i].contains(a) && graph[i].contains(b) && !graph[i].contains(except)) {
                count++;
            }
        }
        return count;
    }
}