n, m = map(int, input().split())
G = [set() for _ in range(n)]
for _ in range(m):
    a, b = map(int, input().split())
    G[a].add(b)
    G[b].add(a)

ans = 0
for i in range(n):
    for j in range(n):
        if i == j:
            continue
        for k in range(n):
            if k == i or k == j:
                continue
            for l in range(n):
                if l == i or l == j or l == k:
                    continue
                if (j in G[i] and k in G[j] and l in G[k] and i in G[l]
                    and k not in G[i] and l not in G[j]):
                    ans += 1
print(ans // 8)