N,M = map(int,input().split())
n_list = [[] for _ in range(N)]

for i in range(M):
    nd1,nd2 = map(int,input().split())
    n_list[nd1].append(nd2)
    n_list[nd2].append(nd1)

cnt = 0
for i,nod in enumerate(n_list):
    len_n = len(nod)
    if len_n<2:
        continue
    for j in nod:
        for k in nod:
            if j<k and k not in n_list[j]:
                cnt += len(set(n_list[j])&set(n_list[k])-set(nod+[i]))
print(cnt//4)