from collections import deque
N,M = map(int,input().split())
G = {i:set() for i 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-3):
    for j in range(i+1,N-2):
        for k in range(j+1,N-1):
            for l in range(k+1,N):
                if len(G[i]&set([j,k,l]))==2 and len(G[j]&set([i,k,l]))==2 and len(G[k]&set([i,j,l]))==2 and len(G[l]&set([i,j,k]))==2:
                    col = {i:1,j:0,k:0,l:0}
                    que = deque([i])
                    while que:
                        x = que.popleft()
                        A = set([i,j,k,l])
                        A.remove(x)
                        for y in G[x]&A:
                            if col[y]==0:
                                col[y] = 1
                                que.append(y)
                    if sum(col.values())==4:
                        ans += 1
                else:continue
print(ans)