n,m = map(int,input().split(' '))
e = [[] for i in range(n)]
for i in range(m):
    a,b = map(int,input().split(' '))
    e[a].append(b)
    e[b].append(a)

ans = 0
for u in range(n):
    for v in e[u]:
        for s in e[u]:
            if v < s and s not in e[v]:
                ans += len(set(e[v])&set(e[s])-set(e[u])-set({u}))
print(ans//4)